| Abelmoschus esculentus (L.) Moench | 1554 images |
| Abies balsamea (L.) Mill. | 1058 images |
| Abies fraseri (Pursh) Poir. | 80 images |
| Abildgaardia ovata (Burm.f.) Kral | 12 images |
| Abrus precatorius L. | 475 images |
| Abutilon fruticosum Guill. & Perr. | 3 images |
| Abutilon grandiflorum G.Don | 144 images |
| Abutilon hirtum (Lam.) Sweet | 108 images |
| Abutilon theophrasti Medik. | 3418 images |
| Acacia auriculiformis A.Cunn. ex Benth. | 291 images |
| Acacia baileyana F.Muell. | 789 images |
| Acacia melanoxylon R.Br. | 1502 images |
| Acacia saligna (Labill.) H.L.Wendl. | 833 images |
| Acaciella angustissima (Mill.) Britton & Rose | 85 images |
| Acalypha alopecuroidea Jacq. | 196 images |
| Acalypha arvensis Poepp. | 62 images |
| Acalypha chamaedrifolia (Lam.) Müll.Arg. | 18 images |
| Acalypha herzogiana Pax & K.Hoffm. | 36 images |
| Acalypha poiretii Spreng. | 11 images |
| Acalypha rhomboidea Raf. | 3 images |
| Acalypha setosa A.Rich. | 50 images |
| Acalypha virginica L. | 1303 images |
| Acalypha wilkesiana Müll.Arg. | 2704 images |
| Acanthocereus tetragonus (L.) Hummelinck | 2115 images |
| Acanthospermum australe (Loefl.) Kuntze | 125 images |
| Acanthospermum hispidum DC. | 152 images |
| Acer negundo L. | 18515 images |
| Acer pensylvanicum L. | 902 images |
| Acer platanoides L. | 18607 images |
| Acer pseudoplatanus L. | 25655 images |
| Acer rubrum L. | 6769 images |
| Acer saccharinum L. | 8588 images |
| Acer saccharum Marshall | 2411 images |
| Acer spicatum Lam. | 497 images |
| Achillea millefolium L. | 26337 images |
| Achillea ptarmica L. | 4011 images |
| Achyranthes aspera L. | 1133 images |
| Achyranthes bidentata Blume | 36 images |
| Acicarpha tribuloides Juss. | 44 images |
| Acmella pusilla (Hook. & Arn.) R.K.Jansen | 14 images |
| Acmella repens (Walter) Rich. | 1 images |
| Acmispon americanus (Nutt.) Rydb. | 29 images |
| Acoelorraphe wrightii (Griseb. & H.Wendl.) H.Wendl. ex Becc. | 47 images |
| Aconitum uncinatum L. | 10 images |
| Acorus calamus L. | 789 images |
| Acorus gramineus Aiton | 121 images |
| Acrostichum aureum L. | 355 images |
| Acrostichum danaeifolium Langsd. & Fisch. | 17 images |
| Actaea cordifolia DC. | 1 images |
| Actaea pachypoda Elliott | 935 images |
| Actaea racemosa L. | 774 images |
| Actinidia chinensis Planch. | 3510 images |
| Actinostachys pennula (Sw.) Hook. | 45 images |
| Adenanthera pavonina L. | 340 images |
| Adiantum aleuticum (Rupr.) C.A.Paris | 3 images |
| Adiantum capillus-veneris L. | 3507 images |
| Adiantum caudatum L. | 37 images |
| Adiantum hispidulum Sw. | 337 images |
| Adiantum pedatum L. | 667 images |
| Adiantum tenerum Sw. | 22 images |
| Adiantum trapeziforme L. | 85 images |
| Adiantum villosum L. | 4 images |
| Adlumia fungosa (Aiton) Britton, Sterns & Poggenb. | 8 images |
| Adonis annua L. | 894 images |
| Aegilops cylindrica Host | 63 images |
| Aegilops geniculata Roth | 1067 images |
| Aegilops triuncialis L. | 170 images |
| Aegopodium podagraria L. | 13270 images |
| Aeschynomene americana L. | 189 images |
| Aeschynomene fluitans Peter | 2 images |
| Aeschynomene indica L. | 61 images |
| Aeschynomene rudis Benth. | 16 images |
| Aeschynomene villosa Poir. | 65 images |
| Aesculus × bushii C.K.Schneid. | 15 images |
| Aesculus × mutabilis (Spach) Scheele | 2 images |
| Aesculus × neglecta Lindl. | 12 images |
| Aesculus flava Sol. | 296 images |
| Aesculus glabra Willd. | 1157 images |
| Aesculus hippocastanum L. | 18944 images |
| Aesculus parviflora Walter | 1428 images |
| Aesculus pavia L. | 1674 images |
| Aesculus sylvatica W.Bartram | 8 images |
| Aethusa cynapium L. | 2303 images |
| Agalinis aspera (Douglas ex Benth.) Britton | 1 images |
| Agalinis filifolia (Nutt.) Raf. | 2 images |
| Agalinis maritima (Raf.) Raf. | 6 images |
| Agalinis oligophylla Pennell | 2 images |
| Agalinis purpurea (L.) Pennell | 213 images |
| Agalinis skinneriana (Alph.Wood ex A.Gray) Britton | 8 images |
| Agalinis tenuifolia (Vahl) Raf. | 109 images |
| Agarista populifolia (Lam.) Judd | 6 images |
| Agastache foeniculum (Pursh) Kuntze | 2477 images |
| Agastache nepetoides (L.) Kuntze | 80 images |
| Agastache scrophulariifolia (Willd.) Kuntze | 21 images |
| Agave decipiens Baker | 28 images |
| Agave demeesteriana Jacobi | 440 images |
| Agave sisalana Perrine | 1417 images |
| Agave virginica L. | 55 images |
| Agave weberi J.F.Cels ex J.Poiss. | 24 images |
| Ageratina altissima (L.) R.M.King & H.Rob. | 1552 images |
| Ageratina aromatica (L.) Spach | 598 images |
| Ageratina jucunda (Greene) Clewell & Wooten | 17 images |
| Ageratum conyzoides L. | 739 images |
| Ageratum houstonianum Mill. | 3734 images |
| Ageratum littorale A.Gray | 1 images |
| Agrimonia eupatoria L. | 12902 images |
| Agrimonia gryposepala Wallr. | 435 images |
| Agrimonia pubescens Wallr. | 26 images |
| Agrimonia rostellata Wallr. | 31 images |
| Agrimonia striata Michx. | 20 images |
| Agropyron cristatum (L.) Gaertn. | 137 images |
| Agrostemma githago L. | 4443 images |
| Agrostis canina L. | 62 images |
| Agrostis capillaris L. | 2151 images |
| Agrostis exarata Trin. | 11 images |
| Agrostis gigantea Roth | 190 images |
| Agrostis hyemalis (Walter) Britton, Sterns & Poggenb. | 4 images |
| Agrostis mertensii Trin. | 14 images |
| Agrostis perennans (Walter) Tuck. | 4 images |
| Agrostis scabra Willd. | 2 images |
| Agrostis stolonifera L. | 426 images |
| Ailanthus altissima (Mill.) Swingle | 14193 images |
| Aira caryophyllea L. | 525 images |
| Aira elegans Willd. ex Roem. & Schult. | 65 images |
| Aira praecox L. | 116 images |
| Ajuga chamaepitys (L.) Schreb. | 1128 images |
| Ajuga genevensis L. | 4642 images |
| Ajuga reptans L. | 22853 images |
| Akebia quinata (Thunb. ex Houtt.) Decne. | 1286 images |
| Albizia julibrissin Durazz. | 15349 images |
| Albuca bracteata (Thunb.) J.C.Manning & Goldblatt | 502 images |
| Alcea rosea L. | 15835 images |
| Alcea rugosa Alef. | 7 images |
| Alchemilla arvensis (L.) Scop. | 537 images |
| Alchemilla australis (Rydb.) Bomble | 60 images |
| Aldrovanda vesiculosa L. | 23 images |
| Aletris aurea Walter | 3 images |
| Aletris farinosa L. | 19 images |
| Aletris lutea Small | 5 images |
| Aleurites moluccanus (L.) Willd. | 432 images |
| Alisma subcordatum Raf. | 37 images |
| Alkekengi officinarum Moench | 5087 images |
| Alliaria petiolata (M.Bieb.) Cavara & Grande | 32335 images |
| Allium ampeloprasum L. | 6761 images |
| Allium canadense L. | 340 images |
| Allium cepa L. | 2664 images |
| Allium cernuum Roth | 274 images |
| Allium drummondii Regel | 55 images |
| Allium neapolitanum Cirillo | 3459 images |
| Allium oleraceum L. | 797 images |
| Allium sativum L. | 1420 images |
| Allium schoenoprasum L. | 4943 images |
| Allium speculae Ownbey & Aase | 2 images |
| Allium stellatum Nutt. ex Ker Gawl. | 22 images |
| Allium tricoccum Aiton | 424 images |
| Allium tuberosum Rottler ex Spreng. | 1529 images |
| Allium vineale L. | 3644 images |
| Alloteropsis cimicina (L.) Stapf | 2 images |
| Alnus alnobetula (Ehrh.) K.Koch | 2015 images |
| Alnus glutinosa (L.) Gaertn. | 17902 images |
| Alnus incana (L.) Moench | 3291 images |
| Alnus maritima (Marshall) Muhl. ex Nutt. | 4 images |
| Alnus serrulata (Aiton) Willd. | 156 images |
| Aloe × schimperi Tod. | 6 images |
| Aloe vera (L.) Burm.f. | 11011 images |
| Alopecurus aequalis Sobol. | 141 images |
| Alopecurus arundinaceus Poir. | 40 images |
| Alopecurus carolinianus Walter | 4 images |
| Alopecurus geniculatus L. | 138 images |
| Alopecurus myosuroides Huds. | 586 images |
| Alopecurus pratensis L. | 3022 images |
| Alpinia zerumbet (Pers.) B.L.Burtt & R.M.Sm. | 2238 images |
| Alstroemeria psittacina Lehm. | 124 images |
| Alternanthera bettzickiana (Regel) G.Nicholson | 890 images |
| Alternanthera brasiliana (L.) Kuntze | 2421 images |
| Alternanthera caracasana Kunth | 146 images |
| Alternanthera flavescens Kunth | 30 images |
| Alternanthera littoralis P.Beauv. | 23 images |
| Alternanthera paronychioides A.St.-Hil. | 64 images |
| Alternanthera philoxeroides (Mart.) Griseb. | 379 images |
| Alternanthera pungens Kunth | 182 images |
| Alternanthera sessilis (L.) R.Br. ex DC. | 599 images |
| Althaea cannabina L. | 1760 images |
| Althaea officinalis L. | 3890 images |
| Alvaradoa amorphoides Liebm. | 40 images |
| Alysicarpus ovalifolius (Schumach.) J.Léonard | 246 images |
| Alysicarpus rugosus (Willd.) DC. | 1 images |
| Alysicarpus vaginalis (L.) DC. | 270 images |
| Alyssum alyssoides (L.) L. | 1170 images |
| Amaranthus albus L. | 611 images |
| Amaranthus blitoides S.Watson | 597 images |
| Amaranthus blitum L. | 2592 images |
| Amaranthus cannabinus (L.) J.D.Sauer | 2 images |
| Amaranthus caudatus L. | 4055 images |
| Amaranthus crassipes Schltdl. | 2 images |
| Amaranthus cruentus L. | 1380 images |
| Amaranthus deflexus L. | 2036 images |
| Amaranthus greggii S.Watson | 1 images |
| Amaranthus hybridus L. | 1745 images |
| Amaranthus hypochondriacus L. | 1517 images |
| Amaranthus muricatus (Gillies ex Moq.) Hieron. | 121 images |
| Amaranthus palmeri S.Watson | 133 images |
| Amaranthus polygonoides L. | 20 images |
| Amaranthus powellii S.Watson | 143 images |
| Amaranthus pumilus Raf. | 5 images |
| Amaranthus retroflexus L. | 9554 images |
| Amaranthus spinosus L. | 1611 images |
| Amaranthus thunbergii Moq. | 10 images |
| Amaranthus tortuosus Hornem. | 73 images |
| Amaranthus viridis L. | 1920 images |
| Amaryllis belladonna L. | 3381 images |
| Ambrosia artemisiifolia L. | 5829 images |
| Ambrosia bidentata Michx. | 20 images |
| Ambrosia confertiflora DC. | 29 images |
| Ambrosia hispida Pursh | 11 images |
| Ambrosia psilostachya DC. | 446 images |
| Ambrosia tenuifolia Spreng. | 60 images |
| Ambrosia trifida L. | 1183 images |
| Amelanchier arborea (F.Michx.) Fernald | 37 images |
| Amelanchier canadensis (L.) Medik. | 2849 images |
| Amelanchier laevis Wiegand | 205 images |
| Amelanchier obovalis (Michx.) Ashe | 2 images |
| Amelanchier stolonifera Wiegand | 9 images |
| Amianthium muscitoxicum (Walter) A.Gray | 26 images |
| Ammannia auriculata Willd. | 13 images |
| Ammannia coccinea Rottb. | 54 images |
| Ammannia latifolia L. | 22 images |
| Ammannia robusta Heer & Regel | 7 images |
| Ammi majus L. | 2625 images |
| Amorpha canescens Pursh | 254 images |
| Amorpha fruticosa L. | 2322 images |
| Amorpha herbacea Walter | 1 images |
| Amorpha ouachitensis Wilbur | 11 images |
| Ampelaster carolinianus (Walter) G.L.Nesom | 34 images |
| Ampelopsis aconitifolia Bunge | 57 images |
| Ampelopsis cordata Michx. | 495 images |
| Ampelopsis glandulosa (Wall.) Momiy. | 164 images |
| Amphiachyris dracunculoides (DC.) Nutt. | 108 images |
| Amphicarpaea bracteata (L.) Fernald | 500 images |
| Amphitecna latifolia (Mill.) A.H.Gentry | 21 images |
| Amsinckia lycopsoides Lindl. ex Lehm. | 1 images |
| Amsinckia menziesii (Lehm.) A.Nelson & J.F.Macbr. | 236 images |
| Amsonia ciliata Walter | 102 images |
| Amsonia hubrichtii Woodson | 288 images |
| Amsonia tabernaemontana Walter | 907 images |
| Amyris balsamifera L. | 4 images |
| Amyris elemifera L. | 48 images |
| Anaphalis margaritacea (L.) Benth. & Hook.f. | 1575 images |
| Anchusa arvensis (L.) M.Bieb. | 2918 images |
| Anchusa azurea Mill. | 3370 images |
| Andersonglossum virginianum (L.) J.I.Cohen | 265 images |
| Andira inermis (W.Wright) DC. | 169 images |
| Andrographis echioides (L.) Nees | 3 images |
| Andropogon bicornis L. | 180 images |
| Andropogon gerardi Vitman | 234 images |
| Andropogon glomeratus (Walter) Britton, Sterns & Poggenb. | 7 images |
| Andropogon gyrans Ashe | 13 images |
| Andropogon ternarius Michx. | 35 images |
| Andropogon virginicus L. | 3 images |
| Androsace occidentalis Pursh | 5 images |
| Anemia adiantifolia (L.) Sw. | 4 images |
| Anemonastrum canadense (L.) Mosyakin | 1055 images |
| Anemone berlandieri Pritz. | 154 images |
| Anemone caroliniana Walter | 9 images |
| Anemone virginiana L. | 411 images |
| Anemonella thalictroides (L.) Spach | 407 images |
| Anemonoides lancifolia (Pursh) Holub | 6 images |
| Anemonoides quinquefolia (L.) Holub | 1354 images |
| Anethum graveolens L. | 2975 images |
| Angadenia berteroi (A.DC.) Miers | 2 images |
| Angelica atropurpurea L. | 428 images |
| Angelica lucida L. | 55 images |
| Angelica triquinata Michx. | 30 images |
| Angelonia salicariifolia Bonpl. | 4 images |
| Aniseia martinicensis (Jacq.) Choisy | 19 images |
| Annona glabra L. | 348 images |
| Annona squamosa L. | 1375 images |
| Anoda cristata (L.) Schltdl. | 72 images |
| Anredera cordifolia (Ten.) Steenis | 1202 images |
| Anredera vesicaria (Lam.) C.F.Gaertn. | 6 images |
| Antennaria howellii Greene | 24 images |
| Antennaria neglecta Greene | 203 images |
| Antennaria parlinii Fernald | 24 images |
| Antennaria plantaginifolia (L.) Hook. | 215 images |
| Antennaria solitaria Rydb. | 6 images |
| Antennaria virginica Stebbins | 4 images |
| Anthemis arvensis L. | 4392 images |
| Anthemis cotula L. | 1786 images |
| Anthoxanthum aristatum Boiss. | 59 images |
| Anthoxanthum nitens (Weber) Y.Schouten & Veldkamp | 85 images |
| Anthoxanthum odoratum L. | 2283 images |
| Anthriscus caucalis M.Bieb. | 1898 images |
| Anthriscus cerefolium (L.) Hoffm. | 3674 images |
| Anthriscus sylvestris (L.) Hoffm. | 20349 images |
| Anthurium schlechtendalii Kunth | 216 images |
| Anticlea elegans (Pursh) Rydb. | 67 images |
| Antigonon leptopus Hook. & Arn. | 1720 images |
| Antirrhinum majus L. | 15950 images |
| Apera spica-venti (L.) P.Beauv. | 114 images |
| Apios americana Medik. | 356 images |
| Apium graveolens L. | 2119 images |
| Aplectrum hyemale (Muhl. ex Willd.) Torr. | 33 images |
| Apluda mutica L. | 16 images |
| Apocynum androsaemifolium L. | 1134 images |
| Apocynum cannabinum L. | 1130 images |
| Apteria aphylla (Nutt.) Barnhart ex Small | 7 images |
| Aquarius cordifolius (L.) Christenh. & Byng | 95 images |
| Aquarius grandiflorus (Cham. & Schltdl.) Christenh. & Byng | 137 images |
| Aquilegia canadensis L. | 2153 images |
| Aquilegia vulgaris L. | 21196 images |
| Arabidopsis lyrata (L.) O'Kane & Al-Shehbaz | 2 images |
| Arabidopsis thaliana (L.) Heynh. | 2227 images |
| Arabis alpina L. | 1938 images |
| Arachis glabrata Benth. | 14 images |
| Arachis hypogaea L. | 992 images |
| Arachniodes simplicior (Makino) Ohwi | 52 images |
| Aralia elata (Miq.) Seem. | 934 images |
| Aralia hispida Vent. | 100 images |
| Aralia nudicaulis L. | 940 images |
| Aralia racemosa L. | 320 images |
| Aralia spinosa L. | 476 images |
| Araujia odorata (Hook. & Arn.) Fontella & Goyder | 25 images |
| Araujia sericifera Brot. | 3706 images |
| Arctium lappa L. | 11300 images |
| Arctium minus (Hill) Bernh. | 12715 images |
| Arctium tomentosum Mill. | 2428 images |
| Arctostaphylos uva-ursi (L.) Spreng. | 2343 images |
| Ardisia crenata Sims | 1166 images |
| Ardisia elliptica Thunb. | 287 images |
| Ardisia escallonioides Schltdl. & Cham. | 23 images |
| Ardisia japonica (Thunb.) Blume | 14 images |
| Arenaria benthamii Fenzl ex Torr. & A.Gray | 1 images |
| Arenaria lanuginosa (Michx.) Rohrb. | 8 images |
| Arenaria serpyllifolia L. | 1587 images |
| Arethusa bulbosa L. | 42 images |
| Argemone albiflora Hornem. | 257 images |
| Argemone mexicana L. | 1292 images |
| Argyreia nervosa (Burm.f.) Bojer | 16 images |
| Arisaema dracontium (L.) Schott | 371 images |
| Arisaema quinatum (Nutt.) Schott | 1 images |
| Arisaema stewardsonii Britton | 1 images |
| Arisaema triphyllum (L.) Schott | 2260 images |
| Aristida adscensionis L. | 192 images |
| Aristida purpurea Nutt. | 12 images |
| Aristida spiciformis Elliott | 1 images |
| Aristida stricta Michx. | 8 images |
| Aristolochia clematitis L. | 3278 images |
| Aristolochia littoralis Parodi | 857 images |
| Aristolochia macrophylla Lam. | 910 images |
| Aristolochia maxima Jacq. | 32 images |
| Aristolochia ringens Vahl | 100 images |
| Aristolochia serpentaria L. | 19 images |
| Aristolochia tomentosa Sims | 94 images |
| Armoracia rusticana G.Gaertn., B.Mey. & Scherb. | 301 images |
| Arnoglossum atriplicifolium (L.) H.Rob. | 97 images |
| Arnoglossum ovatum (Walter) H.Rob. | 1 images |
| Arnoglossum plantagineum Raf. | 56 images |
| Aronia × prunifolia (Marshall) Rehder | 11 images |
| Aronia arbutifolia (L.) Pers. | 220 images |
| Aronia melanocarpa (Michx.) Elliott | 3516 images |
| Arrhenatherum elatius (L.) P.Beauv. ex J.Presl & C.Presl | 2491 images |
| Artemisia abrotanum L. | 1614 images |
| Artemisia absinthium L. | 5655 images |
| Artemisia annua L. | 3969 images |
| Artemisia biennis Willd. | 173 images |
| Artemisia campestris L. | 2016 images |
| Artemisia ludoviciana Nutt. | 1349 images |
| Artemisia pontica L. | 98 images |
| Artemisia scoparia Waldst. & Kit. | 64 images |
| Artemisia stelleriana Besser | 234 images |
| Artemisia vulgaris L. | 19099 images |
| Arthraxon hispidus (Thunb.) Makino | 52 images |
| Arum italicum Mill. | 19080 images |
| Aruncus dioicus (Walter) Fernald | 5332 images |
| Arundinaria gigantea (Walter) Muhl. | 219 images |
| Arundinaria tecta (Walter) Muhl. | 4 images |
| Arundo donax L. | 3506 images |
| Asarum arifolium Michx. | 305 images |
| Asarum canadense L. | 671 images |
| Asarum contractum (H.L.Blomq.) Barringer | 3 images |
| Asarum heterophyllum Ashe | 1 images |
| Asarum minus Ashe | 1 images |
| Asarum virginicum L. | 37 images |
| Asclepias amplexicaulis Sm. | 60 images |
| Asclepias connivens Baldwin ex Elliott | 1 images |
| Asclepias curassavica L. | 2891 images |
| Asclepias curtissii A.Gray | 7 images |
| Asclepias exaltata L. | 115 images |
| Asclepias feayi Chapm. ex A.Gray | 5 images |
| Asclepias hirtella (Pennell) Woodson | 18 images |
| Asclepias humistrata Walter | 32 images |
| Asclepias incarnata L. | 1347 images |
| Asclepias lanceolata Walter | 8 images |
| Asclepias longifolia Michx. | 17 images |
| Asclepias michauxii Decne. | 1 images |
| Asclepias obovata Elliott | 2 images |
| Asclepias pedicellata Walter | 5 images |
| Asclepias perennis Walter | 44 images |
| Asclepias purpurascens L. | 691 images |
| Asclepias quadrifolia Jacq. | 96 images |
| Asclepias rubra L. | 9 images |
| Asclepias stenophylla A.Gray | 20 images |
| Asclepias sullivantii Engelm. ex A.Gray | 329 images |
| Asclepias syriaca L. | 4384 images |
| Asclepias tomentosa Elliott | 8 images |
| Asclepias tuberosa L. | 2685 images |
| Asclepias variegata L. | 148 images |
| Asclepias verticillata L. | 208 images |
| Asclepias viridiflora Raf. | 215 images |
| Asclepias viridis Walter | 536 images |
| Asemeia grandiflora (Walter) Small | 2 images |
| Asimina angustifolia Raf. | 1 images |
| Asimina incana (W.Bartram) Exell | 1 images |
| Asimina obovata (Willd.) Nash | 24 images |
| Asimina parviflora (Michx.) Dunal | 53 images |
| Asimina pygmaea (W.Bartram) Dunal | 1 images |
| Asimina reticulata Shuttlew. ex Chapm. | 13 images |
| Asimina tetramera Small | 5 images |
| Asimina triloba (L.) Dunal | 1644 images |
| Asparagus aethiopicus L. | 1797 images |
| Asparagus officinalis L. | 3595 images |
| Asparagus setaceus (Kunth) Jessop | 3613 images |
| Asperugo procumbens L. | 473 images |
| Aspidistra elatior Blume | 1511 images |
| Aspidogyne querceticola (Lindl.) Meneguzzo | 19 images |
| Asplenium bradleyi D.C.Eaton | 1 images |
| Asplenium erosum L. | 2 images |
| Asplenium monanthes L. | 18 images |
| Asplenium montanum Willd. | 23 images |
| Asplenium pinnatifidum Nutt. | 3 images |
| Asplenium platyneuron (L.) Britton, Sterns & Poggenb. | 378 images |
| Asplenium pumilum Sw. | 4 images |
| Asplenium resiliens Kunze | 11 images |
| Asplenium rhizophyllum L. | 76 images |
| Asplenium ruta-muraria L. | 2282 images |
| Asplenium scolopendrium L. | 7203 images |
| Asplenium serratum L. | 57 images |
| Asplenium trichomanes L. | 6826 images |
| Aster tataricus L.f. | 68 images |
| Astilbe biternata (Vent.) Britton | 1 images |
| Astraea lobata (L.) Klotzsch | 90 images |
| Astragalus canadensis L. | 52 images |
| Astragalus crassicarpus Nutt. | 74 images |
| Astragalus hamosus L. | 630 images |
| Astragalus nuttallianus DC. | 19 images |
| Astranthium integrifolium Nutt. | 9 images |
| Asystasia gangetica (L.) T.Anderson | 2102 images |
| Asystasia intrusa (Forssk.) Blume | 10 images |
| Atalantia buxifolia (Poir.) Oliv. ex Benth. | 21 images |
| Athyrium niponicum (Mett.) Hance | 264 images |
| Atocion armeria (L.) Raf. | 3143 images |
| Atriplex hortensis L. | 1192 images |
| Atriplex lampa (Moq.) Gillies ex D.Dietr. | 20 images |
| Atriplex littoralis L. | 391 images |
| Atriplex patula L. | 889 images |
| Atriplex prostrata Boucher ex DC. | 1626 images |
| Atriplex rosea L. | 50 images |
| Atriplex semibaccata R.Br. | 131 images |
| Atriplex tatarica L. | 165 images |
| Aucuba japonica Thunb. | 6908 images |
| Aureolaria flava (L.) Farw. | 60 images |
| Aureolaria grandiflora (Benth.) Pennell | 53 images |
| Aureolaria levigata (Raf.) Raf. | 6 images |
| Aureolaria pectinata (Nutt.) Pennell | 41 images |
| Aureolaria virginica (L.) Pennell | 37 images |
| Aurinia saxatilis (L.) Desv. | 2977 images |
| Avena fatua L. | 2901 images |
| Avena sativa L. | 3943 images |
| Avenella flexuosa (L.) Drejer | 550 images |
| Avenula pubescens (Huds.) Dumort. | 133 images |
| Avicennia germinans (L.) L. | 502 images |
| Axonopus compressus (Sw.) P.Beauv. | 283 images |
| Axonopus fissifolius (Raddi) Kuhlm. | 353 images |
| Axonopus furcatus (Flüggé) Hitchc. | 1 images |
| Azolla caroliniana Willd. | 20 images |
| Azolla filiculoides Lam. | 366 images |
| Azolla pinnata R.Br. | 1 images |
| Baccharis angustifolia Michx. | 6 images |
| Baccharis halimifolia L. | 1909 images |
| Bacopa caroliniana (Walter) B.L.Rob. | 16 images |
| Bacopa egensis (Poepp.) Pennell | 5 images |
| Bacopa innominata (M.Gómez) Alain | 1 images |
| Bacopa monnieri (L.) Wettst. | 240 images |
| Bacopa repens (Sw.) Wettst. | 161 images |
| Bacopa rotundifolia (Michx.) Wettst. | 7 images |
| Balduina uniflora Nutt. | 8 images |
| Ballota nigra L. | 5970 images |
| Bambusa multiplex (Lour.) Raeusch. ex Schult.f. | 131 images |
| Bambusa vulgaris Schrad. ex J.C.Wendl. | 256 images |
| Baptisia alba (L.) R.Br. | 150 images |
| Baptisia albescens Small | 1 images |
| Baptisia australis (L.) R.Br. | 1346 images |
| Baptisia lanceolata (Walter) Elliott | 4 images |
| Baptisia lecontei Torr. & A.Gray | 2 images |
| Baptisia nuttalliana Small | 49 images |
| Baptisia perfoliata (L.) R.Br. | 8 images |
| Baptisia sphaerocarpa Nutt. | 199 images |
| Baptisia tinctoria (L.) R.Br. | 57 images |
| Barbarea verna (Mill.) Asch. | 1628 images |
| Barbarea vulgaris W.T.Aiton | 1319 images |
| Barleria cristata L. | 852 images |
| Barleria lupulina Lindl. | 171 images |
| Barleria repens Nees | 236 images |
| Bartonia verna (Michx.) Raf. ex Barton | 2 images |
| Basella alba L. | 998 images |
| Bassia scoparia (L.) A.J.Scott | 566 images |
| Batis maritima L. | 55 images |
| Bauhinia variegata L. | 3082 images |
| Begonia cucullata Willd. | 9497 images |
| Begonia hirtella Link | 671 images |
| Bejaria racemosa Vent. | 19 images |
| Bellardia trixago (L.) All. | 3123 images |
| Bellis perennis L. | 15097 images |
| Berberis bealei Fortune | 997 images |
| Berberis canadensis Mill. | 23 images |
| Berberis julianae C.K.Schneid. | 3462 images |
| Berberis thunbergii DC. | 9807 images |
| Berberis vulgaris L. | 5956 images |
| Berchemia scandens (Hill) K.Koch | 5 images |
| Berlandiera betonicifolia (Hook.) Small | 5 images |
| Berlandiera pumila Nutt. | 7 images |
| Berlandiera subacaulis (Nutt.) Nutt. | 18 images |
| Berteroa incana (L.) DC. | 5604 images |
| Berula erecta (Huds.) Coville | 880 images |
| Beta vulgaris L. | 9801 images |
| Betula alleghaniensis Britton | 318 images |
| Betula cordifolia Regel | 7 images |
| Betula lenta L. | 173 images |
| Betula nigra L. | 990 images |
| Betula papyrifera Marshall | 585 images |
| Betula populifolia Marshall | 82 images |
| Betula pubescens Ehrh. | 7079 images |
| Bidens alba (L.) DC. | 384 images |
| Bidens aristosa (Michx.) Britton | 202 images |
| Bidens bipinnata L. | 1391 images |
| Bidens cernua L. | 590 images |
| Bidens connata Muhl. ex Willd. | 68 images |
| Bidens frondosa L. | 3554 images |
| Bidens pilosa L. | 3387 images |
| Bidens tripartita L. | 1315 images |
| Bidens vulgata Greene | 81 images |
| Bifora testiculata (L.) Spreng. | 56 images |
| Bigelowia nuttallii L.C.Anderson | 2 images |
| Bignonia capreolata L. | 623 images |
| Bischofia javanica Blume | 156 images |
| Blastania cerasiformis (Stocks) A.Meeuse | 9 images |
| Blechnum appendiculatum Willd. | 30 images |
| Blephilia ciliata (L.) Raf. ex Benth. | 82 images |
| Blephilia hirsuta (Pursh) Benth. | 93 images |
| Bletia patula Hook. | 4 images |
| Bletia purpurea (Lam.) A.DC. | 53 images |
| Bletia spicata (Walter) Sosa & M.W.Chase | 18 images |
| Blitum bonus-henricus (L.) Rchb. | 1679 images |
| Blyxa aubertii Rich. | 4 images |
| Boehmeria cylindrica (L.) Sw. | 688 images |
| Boehmeria nivea (L.) Gaudich. | 274 images |
| Boerhavia coccinea Mill. | 187 images |
| Boerhavia diffusa L. | 608 images |
| Boerhavia erecta L. | 204 images |
| Bolboschoenus fluviatilis (Torr.) Soják | 3 images |
| Bolboschoenus maritimus (L.) Palla | 892 images |
| Boltonia asteroides L'Hér. | 5 images |
| Bonamia grandiflora (A.Gray) Hallier f. | 2 images |
| Bonellia macrocarpa (Cav.) B.Ståhl & Källersjö | 36 images |
| Bonnaya antipoda (L.) Druce | 28 images |
| Bonnaya ciliata (Colsm.) Spreng. | 14 images |
| Bontia daphnoides L. | 82 images |
| Borago officinalis L. | 21312 images |
| Borodinia laevigata (Muhl. ex Willd.) P.J.Alexander & Windham | 4 images |
| Borrichia arborescens (L.) DC. | 51 images |
| Borrichia frutescens (L.) DC. | 160 images |
| Bothriochloa barbinodis (Lag.) Herter | 549 images |
| Bothriochloa bladhii (Retz.) S.T.Blake | 278 images |
| Bothriochloa ischaemum (L.) Keng | 647 images |
| Bothriochloa laguroides (DC.) Herter | 23 images |
| Bothriochloa pertusa (L.) A.Camus | 3 images |
| Botrychium dissectum Spreng. | 173 images |
| Botrychium multifidum (S.G.Gmel.) Rupr. | 2 images |
| Botrychium simplex E.Hitchc. | 49 images |
| Botrychium virginianum (L.) Sw. | 232 images |
| Bouchea prismatica (L.) Kuntze | 34 images |
| Bourreria succulenta Jacq. | 139 images |
| Bouteloua aristidoides (Kunth) Griseb. | 4 images |
| Bouteloua barbata Lag. | 1 images |
| Bouteloua curtipendula (Michx.) Torr. | 125 images |
| Bouteloua dactyloides (Nutt.) Columbus | 2 images |
| Bouteloua gracilis (Kunth) Lag. ex Griffiths | 78 images |
| Bouteloua rigidiseta (Steud.) Hitchc. | 21 images |
| Bowlesia incana Ruiz & Pav. | 359 images |
| Boykinia aconitifolia Nutt. | 7 images |
| Brachypodium sylvaticum (Huds.) P.Beauv. | 1840 images |
| Bradburia pilosa (Nutt.) Semple | 10 images |
| Brasenia schreberi J.F.Gmel. | 16 images |
| Brasiliopuntia brasiliensis (Willd.) A.Berger | 810 images |
| Brassia caudata (L.) Lindl. | 300 images |
| Brassica juncea (L.) Czern. | 1855 images |
| Brassica napus L. | 10285 images |
| Brassica oleracea L. | 9384 images |
| Brassica rapa L. | 4185 images |
| Breynia disticha J.R.Forst. & G.Forst. | 960 images |
| Brickellia cordifolia Elliott | 3 images |
| Brickellia eupatorioides (L.) Shinners | 86 images |
| Brickellia grandiflora (Hook.) Nutt. | 10 images |
| Brintonia discoidea (Elliott) Greene | 3 images |
| Briza maxima L. | 2122 images |
| Briza media L. | 1160 images |
| Briza minor L. | 353 images |
| Bromelia pinguin L. | 307 images |
| Bromus arvensis L. | 157 images |
| Bromus catharticus Vahl | 500 images |
| Bromus ciliatus L. | 1 images |
| Bromus commutatus Schrad. | 103 images |
| Bromus diandrus Roth | 1408 images |
| Bromus erectus Huds. | 1165 images |
| Bromus hordeaceus L. | 3146 images |
| Bromus inermis Leyss. | 862 images |
| Bromus kalmii A.Gray | 1 images |
| Bromus lanceolatus Roth | 80 images |
| Bromus latiglumis (Shear) Hitchc. | 2 images |
| Bromus madritensis L. | 561 images |
| Bromus pubescens Muhl. ex Willd. | 5 images |
| Bromus racemosus L. | 192 images |
| Bromus ramosus Huds. | 294 images |
| Bromus rigidus Roth | 14 images |
| Bromus rubens L. | 400 images |
| Bromus scoparius L. | 13 images |
| Bromus secalinus L. | 253 images |
| Bromus squarrosus L. | 135 images |
| Bromus sterilis L. | 2954 images |
| Bromus tectorum L. | 463 images |
| Brosimum alicastrum Sw. | 117 images |
| Broussonetia papyrifera (L.) L'Hér. ex Vent. | 3151 images |
| Brugmansia suaveolens (Humb. & Bonpl. ex Willd.) Sweet | 75 images |
| Bruguiera gymnorhiza (L.) Lam. ex Savigny | 56 images |
| Brunnera macrophylla (Adams) I.M.Johnst. | 4652 images |
| Brunnichia ovata (Walter) Shinners | 26 images |
| Buchnera pusilla Kunth | 31 images |
| Buckleya distichophylla (Nutt.) Torr. | 5 images |
| Buddleja davidii Franch. | 18032 images |
| Buddleja indica Lam. | 6 images |
| Buddleja lindleyana Fortune | 110 images |
| Buddleja madagascariensis Lam. | 185 images |
| Buglossoides arvensis (L.) I.M.Johnst. | 1199 images |
| Bulbophyllum pinelianum (A.Rich.) Ormerod | 11 images |
| Bulbostylis barbata (Rottb.) C.B.Clarke | 19 images |
| Bulbostylis capillaris (L.) Kunth ex C.B.Clarke | 2 images |
| Bulbostylis hispidula (Vahl) R.W.Haines | 11 images |
| Bunias erucago L. | 1263 images |
| Bupleurum gerardi All. | 1 images |
| Bupleurum lancifolium Hornem. | 31 images |
| Bupleurum rotundifolium L. | 551 images |
| Burmannia capitata (Walter ex J.F.Gmel.) Mart. | 160 images |
| Bursera fagaroides (Kunth) Engl. | 39 images |
| Bursera simaruba (L.) Sarg. | 586 images |
| Buxus sempervirens L. | 10202 images |
| Byrsonima lucida (Mill.) DC. | 37 images |
| Cabomba caroliniana A.Gray | 63 images |
| Caesalpinia pulcherrima (L.) Sw. | 3670 images |
| Cajanus cajan (L.) Huth | 335 images |
| Cakile edentula (Bigelow) Hook. | 282 images |
| Cakile lanceolata (Willd.) O.E.Schulz | 3 images |
| Cakile maritima Scop. | 7119 images |
| Calamagrostis arenaria (L.) Roth | 1854 images |
| Calamagrostis breviligulata (Fernald) Saarela | 70 images |
| Calamagrostis canadensis (Michx.) P.Beauv. | 4 images |
| Calamagrostis purpurea (Trin.) Trin. | 25 images |
| Calanthe tankervilleae (Banks) M.W.Chase, Christenh. & Schuit. | 271 images |
| Calepina irregularis (Asso) Thell. | 1765 images |
| Calibrachoa parviflora (Juss.) D'Arcy | 2999 images |
| Calla palustris L. | 772 images |
| Calliandra haematocephala Hassk. | 816 images |
| Callicarpa americana L. | 3836 images |
| Callicarpa dichotoma (Lour.) K.Koch | 310 images |
| Callicarpa japonica Thunb. | 234 images |
| Callirhoe bushii Fernald | 6 images |
| Callirhoe digitata Nutt. | 157 images |
| Callirhoe involucrata (Torr. & A.Gray) A.Gray | 58 images |
| Callisia fragrans (Lindl.) Woodson | 1904 images |
| Callisia repens (Jacq.) L. | 3182 images |
| Callisia rosea (Vent.) D.R.Hunt | 1 images |
| Callitriche hermaphroditica L. | 7 images |
| Callitriche heterophylla Pursh | 3 images |
| Callitriche palustris L. | 452 images |
| Callitriche peploides Nutt. | 2 images |
| Callitriche stagnalis Scop. | 775 images |
| Callitriche terrestris Raf. | 8 images |
| Calluna vulgaris (L.) Hull | 10239 images |
| Calophyllum inophyllum L. | 783 images |
| Calopogon barbatus (Walter) Ames | 4 images |
| Calopogon multiflorus Lindl. | 5 images |
| Calopogon pallidus Chapm. | 2 images |
| Calopogon tuberosus (L.) Britton, Sterns & Poggenb. | 79 images |
| Calotropis procera (Aiton) W.T.Aiton | 1214 images |
| Caltha palustris L. | 11113 images |
| Calycanthus floridus L. | 2506 images |
| Calycocarpum lyonii (Pursh) Nutt. ex A.Gray | 1 images |
| Calyptocarpus vialis Less. | 536 images |
| Calystegia sepium (L.) R.Br. | 10546 images |
| Calystegia silvatica (Kit.) Griseb. | 2784 images |
| Calystegia spithamaea (L.) Pursh | 19 images |
| Camassia angusta (Engelm. & A.Gray) Blank. | 5 images |
| Camassia scilloides (Raf.) Cory | 150 images |
| Camelina microcarpa Andrz. ex DC. | 116 images |
| Camelina sativa (L.) Crantz | 239 images |
| Camonea umbellata (L.) A.R.Simões & Staples | 298 images |
| Campanula divaricata Michx. | 36 images |
| Campanula persicifolia L. | 11026 images |
| Campanula rapunculoides L. | 6081 images |
| Campanulastrum americanum (L.) Small | 401 images |
| Campsis radicans (L.) Bureau | 7910 images |
| Campylocentrum pachyrrhizum (Rchb.f.) Rolfe | 3 images |
| Campyloneurum angustifolium (Sw.) Fée | 85 images |
| Campyloneurum brevifolium (Lodd. ex Link) Link | 11 images |
| Campyloneurum costatum C.Presl | 1 images |
| Campyloneurum phyllitidis (L.) C.Presl | 22 images |
| Canavalia brasiliensis Mart. ex Benth. | 22 images |
| Canavalia ensiformis (L.) DC. | 72 images |
| Canavalia gladiata (Jacq.) DC. | 27 images |
| Canavalia rosea (Sw.) DC. | 713 images |
| Canella winterana (L.) Gaertn. | 84 images |
| Canna flaccida Salisb. | 61 images |
| Canna glauca L. | 195 images |
| Canna indica L. | 11949 images |
| Cannabis sativa L. | 5982 images |
| Cantinoa americana (Aubl.) Harley & J.F.B.Pastore | 30 images |
| Cantinoa mutabilis (Rich.) Harley & J.F.B.Pastore | 109 images |
| Caperonia castaneifolia (L.) A.St.-Hil. | 54 images |
| Caperonia palustris (L.) A.St.-Hil. | 65 images |
| Capnoides sempervirens (L.) Borkh. | 125 images |
| Capraria biflora L. | 134 images |
| Capsella bursa-pastoris (L.) Medik. | 10381 images |
| Capsicum annuum L. | 12735 images |
| Cardamine angustata O.E.Schulz | 13 images |
| Cardamine bulbosa (Schreb. ex Muhl.) Britton, Sterns & Poggenb. | 27 images |
| Cardamine concatenata (Michx.) O.Schwarz | 394 images |
| Cardamine diphylla (Michx.) Alph.Wood | 66 images |
| Cardamine douglassii Britton | 7 images |
| Cardamine flexuosa With. | 5616 images |
| Cardamine hirsuta L. | 4270 images |
| Cardamine impatiens L. | 1854 images |
| Cardamine occulta Hornem. | 8 images |
| Cardamine parviflora L. | 1994 images |
| Cardamine pensylvanica Muhl. ex Willd. | 7 images |
| Cardiocrinum cordatum (Thunb.) Makino | 22 images |
| Cardiospermum corindum L. | 1 images |
| Cardiospermum halicacabum L. | 1401 images |
| Cardiospermum microcarpum Kunth | 2 images |
| Carduus acanthoides L. | 4257 images |
| Carduus crispus L. | 906 images |
| Carduus nutans L. | 5205 images |
| Carduus pycnocephalus L. | 4694 images |
| Carex acutiformis Ehrh. | 1941 images |
| Carex albolutescens Schwein. | 5 images |
| Carex aquatilis Wahlenb. | 21 images |
| Carex arenaria L. | 299 images |
| Carex atherodes Spreng. | 5 images |
| Carex baileyi Britton | 1 images |
| Carex barrattii Torr. ex Schwein. | 1 images |
| Carex blanda Dewey | 41 images |
| Carex bromoides Willd. | 4 images |
| Carex brunnescens (Pers.) Poir. | 41 images |
| Carex bushii Mack. | 5 images |
| Carex buxbaumii Wahlenb. | 73 images |
| Carex canescens L. | 138 images |
| Carex careyana Torr. ex Dewey | 8 images |
| Carex caroliniana Schwein. | 1 images |
| Carex caryophyllea Latourr. | 736 images |
| Carex cephalophora Muhl. ex Willd. | 20 images |
| Carex cherokeensis Schwein. | 19 images |
| Carex comosa Boott | 44 images |
| Carex conjuncta Boott | 6 images |
| Carex crinita Lam. | 83 images |
| Carex crus-corvi Shuttlew. ex Kunze | 1 images |
| Carex decomposita Muhl. | 3 images |
| Carex diandra Schrank | 81 images |
| Carex distans L. | 173 images |
| Carex divisa Huds. | 167 images |
| Carex divulsa Stokes | 788 images |
| Carex eburnea Boott | 29 images |
| Carex echinata Murray | 318 images |
| Carex emoryi Dewey | 8 images |
| Carex extensa Gooden. | 127 images |
| Carex festucacea Willd. | 1 images |
| Carex flaccosperma Dewey | 29 images |
| Carex folliculata L. | 5 images |
| Carex frankii Kunth | 25 images |
| Carex gracillima Schwein. | 24 images |
| Carex granularis Muhl. ex Willd. | 12 images |
| Carex grayi J.Carey | 309 images |
| Carex grisea Wahlenb. | 22 images |
| Carex hamata Sw. | 4 images |
| Carex hirsutella Mack. | 14 images |
| Carex hirta L. | 940 images |
| Carex hirtifolia Mack. | 9 images |
| Carex hitchcockiana Dewey | 1 images |
| Carex hyalinolepis Steud. | 5 images |
| Carex hystericina Muhl. ex Willd. | 33 images |
| Carex intumescens Rudge | 122 images |
| Carex jamesii Schwein. | 9 images |
| Carex kobomugi Ohwi | 3 images |
| Carex lacustris Willd. | 15 images |
| Carex laevivaginata (Kük.) Mack. | 1 images |
| Carex lasiocarpa Ehrh. | 53 images |
| Carex laxiculmis Schwein. | 1 images |
| Carex laxiflora Lam. | 8 images |
| Carex leporina L. | 333 images |
| Carex limosa L. | 122 images |
| Carex longii Mack. | 13 images |
| Carex lupuliformis Sartwell ex Dewey | 8 images |
| Carex lupulina Muhl. ex Willd. | 91 images |
| Carex lurida Wahlenb. | 127 images |
| Carex meadii Dewey | 6 images |
| Carex mesochorea Mack. | 2 images |
| Carex michauxiana Boeckeler | 3 images |
| Carex microdonta Torr. | 1 images |
| Carex molesta Mack. | 8 images |
| Carex muehlenbergii Willd. | 3 images |
| Carex muricata L. | 101 images |
| Carex muskingumensis Schwein. | 154 images |
| Carex nigromarginata Schwein. | 3 images |
| Carex normalis Mack. | 17 images |
| Carex oligosperma Michx. | 9 images |
| Carex pallescens L. | 353 images |
| Carex pedunculata Muhl. ex Willd. | 23 images |
| Carex pensylvanica Lam. | 92 images |
| Carex picta Steud. | 16 images |
| Carex planostachys Kunze | 5 images |
| Carex plantaginea Lam. | 197 images |
| Carex platyphylla J.Carey | 8 images |
| Carex prairea Dewey ex Alph.Wood | 2 images |
| Carex pumila Thunb. | 28 images |
| Carex radiata (Wahlenb.) Small | 39 images |
| Carex rosea Willd. | 1 images |
| Carex sartwellii Dewey | 4 images |
| Carex scabrata Schwein. | 11 images |
| Carex shortiana Dewey & Torr. | 4 images |
| Carex sparganioides Muhl. ex Willd. | 18 images |
| Carex spicata Huds. | 444 images |
| Carex sprengelii Dewey ex Spreng. | 7 images |
| Carex squarrosa L. | 29 images |
| Carex sterilis Willd. | 3 images |
| Carex stipata Muhl. ex Willd. | 63 images |
| Carex straminea Willd. ex Schkuhr | 1 images |
| Carex stricta Lam. | 55 images |
| Carex swanii (Fernald) Mack. | 8 images |
| Carex sylvatica Huds. | 1632 images |
| Carex tenera Dewey | 8 images |
| Carex tetrastachya Scheele | 6 images |
| Carex torta Boott ex Tuck. | 5 images |
| Carex tribuloides Wahlenb. | 26 images |
| Carex trichocarpa Muhl. ex Willd. | 15 images |
| Carex typhina Michx. | 4 images |
| Carex utriculata Boott | 10 images |
| Carex vesicaria L. | 342 images |
| Carex virescens Muhl. ex Willd. | 6 images |
| Carex vulpinoidea Michx. | 139 images |
| Carex woodii Dewey | 2 images |
| Carica papaya L. | 6036 images |
| Carissa macrocarpa (Eckl.) A.DC. | 3482 images |
| Carpesium abrotanoides L. | 45 images |
| Carphephorus bellidifolius (Michx.) Torr. & A.Gray | 1 images |
| Carphephorus corymbosus (Nutt.) Torr. & A.Gray | 10 images |
| Carphephorus odoratissimus (J.F.Gmel.) H.J.-C.Hebert | 9 images |
| Carphephorus paniculatus (J.F.Gmel.) H.J.-C.Hebert | 1 images |
| Carphephorus pseudoliatris Cass. | 4 images |
| Carphephorus tomentosus (Michx.) Torr. & A.Gray | 2 images |
| Carpinus caroliniana Walter | 532 images |
| Carpobrotus edulis (L.) N.E.Br. | 7134 images |
| Cartrema americana (L.) G.L.Nesom | 26 images |
| Carum carvi L. | 1566 images |
| Carya aquatica (F.Michx.) Nutt. ex Elliott | 14 images |
| Carya cordiformis (Wangenh.) K.Koch | 114 images |
| Carya glabra (Mill.) Sweet | 2640 images |
| Carya illinoinensis (Wangenh.) K.Koch | 1096 images |
| Carya laciniosa (F.Michx.) G.Don | 29 images |
| Carya myristiciformis (F.Michx.) Nutt. ex Elliott | 3 images |
| Carya ovata (Mill.) K.Koch | 459 images |
| Carya pallida (Ashe) Engelm. & Graebn. | 26 images |
| Carya texana Buckley | 1 images |
| Carya tomentosa (Lam.) Nutt. | 122 images |
| Casasia clusiifolia (Jacq.) Urb. | 10 images |
| Casearia nitida (L.) Jacq. | 6 images |
| Cassytha filiformis L. | 235 images |
| Castanea × neglecta Dode | 2 images |
| Castanea dentata (Marshall) Borkh. | 1048 images |
| Castanea mollissima Blume | 95 images |
| Castanea pumila (L.) Mill. | 62 images |
| Castilleja coccinea (L.) Spreng. | 109 images |
| Castilleja indivisa Engelm. | 335 images |
| Casuarina cunninghamiana Miq. | 2271 images |
| Casuarina equisetifolia L. | 1111 images |
| Casuarina glauca Sieber ex Spreng. | 61 images |
| Catabrosa aquatica (L.) P.Beauv. | 75 images |
| Catalpa bignonioides Walter | 15464 images |
| Catalpa ovata G.Don | 2354 images |
| Catalpa speciosa Teas | 785 images |
| Catapodium rigidum (L.) C.E.Hubb. | 500 images |
| Catharanthus roseus (L.) G.Don | 11455 images |
| Catopsis berteroniana (Schult. & Schult.f.) Mez | 6 images |
| Catopsis floribunda L.B.Sm. | 4 images |
| Catopsis nutans (Sw.) Griseb. | 6 images |
| Caulophyllum thalictroides (L.) Michx. | 507 images |
| Causonis japonica (Thunb.) Raf. | 42 images |
| Cayaponia americana (Lam.) Cogn. | 28 images |
| Cayaponia quinqueloba (Raf.) Shinners | 4 images |
| Ceanothus americanus L. | 838 images |
| Ceanothus herbaceus Raf. | 35 images |
| Ceanothus microphyllus Michx. | 1 images |
| Celastrus orbiculatus Thunb. | 967 images |
| Celastrus scandens L. | 1183 images |
| Celosia argentea L. | 11077 images |
| Celosia nitida Vahl | 8 images |
| Celosia trigyna L. | 35 images |
| Celtis iguanaea (Jacq.) Sarg. | 125 images |
| Celtis laevigata Willd. | 670 images |
| Celtis occidentalis L. | 4427 images |
| Celtis pallida Torr. | 27 images |
| Celtis tenuifolia Nutt. | 47 images |
| Cenchrus × cupreus (Thorpe) Govaerts | 12 images |
| Cenchrus alopecuroides (L.) Thunb. | 878 images |
| Cenchrus americanus (L.) Morrone | 146 images |
| Cenchrus biflorus Roxb. | 72 images |
| Cenchrus ciliaris L. | 572 images |
| Cenchrus echinatus L. | 150 images |
| Cenchrus latifolius (Spreng.) Morrone | 8 images |
| Cenchrus longisetus M.C.Johnst. | 1269 images |
| Cenchrus longispinus (Hack.) Fernald | 102 images |
| Cenchrus pedicellatus (Trin.) Morrone | 205 images |
| Cenchrus purpureus (Schumach.) Morrone | 578 images |
| Cenchrus setaceus (Forssk.) Morrone | 3331 images |
| Cenchrus setigerus Vahl | 1 images |
| Cenchrus setosus Sw. | 9 images |
| Cenchrus spinifex Cav. | 45 images |
| Cenchrus tribuloides L. | 1 images |
| Centaurea benedicta (L.) L. | 368 images |
| Centaurea calcitrapa L. | 1911 images |
| Centaurea cyanus L. | 18257 images |
| Centaurea depressa M.Bieb. | 19 images |
| Centaurea diffusa Lam. | 265 images |
| Centaurea jacea L. | 15524 images |
| Centaurea melitensis L. | 855 images |
| Centaurea nigra L. | 9262 images |
| Centaurea nigrescens Willd. | 1300 images |
| Centaurea phrygia L. | 608 images |
| Centaurea scabiosa L. | 9591 images |
| Centaurea solstitialis L. | 1413 images |
| Centaurea stoebe L. | 1161 images |
| Centaurium erythraea Rafn | 8837 images |
| Centaurium pulchellum (Sw.) Hayek ex Hand.-Mazz., Stadlm., Janch. & Faltis | 70 images |
| Centaurium tenuiflorum (Hoffmanns. & Link) Fritsch | 292 images |
| Centella asiatica (L.) Urb. | 1173 images |
| Centella erecta (L.f.) Fernald | 21 images |
| Centratherum punctatum Cass. | 601 images |
| Centrosema arenicola (Small) F.J.Herm. | 1 images |
| Centrosema sagittatum (Humb. & Bonpl. ex Willd.) Brandegee | 21 images |
| Centrosema virginianum (L.) Benth. | 574 images |
| Cephalanthus occidentalis L. | 1539 images |
| Cerastium arvense L. | 5478 images |
| Cerastium brachypetalum Desp. ex Pers. | 72 images |
| Cerastium glomeratum Thuill. | 4851 images |
| Cerastium holosteoides Fr. | 18 images |
| Cerastium nutans Raf. | 9 images |
| Cerastium pumilum Curtis | 422 images |
| Cerastium semidecandrum L. | 506 images |
| Cerastium tomentosum L. | 7085 images |
| Ceratiola ericoides Michx. | 30 images |
| Ceratophyllum demersum L. | 396 images |
| Ceratopteris pteridoides (Hook.) Hieron. | 2 images |
| Ceratopteris richardii Brongn. | 1 images |
| Ceratopteris thalictroides (L.) Brongn. | 54 images |
| Cercis canadensis L. | 7235 images |
| Cestrum diurnum L. | 90 images |
| Chaenomeles japonica (Thunb.) Lindl. ex Spach | 10579 images |
| Chaenomeles speciosa (Sweet) Nakai | 7957 images |
| Chaenorhinum minus (L.) Lange | 812 images |
| Chaerophyllum bulbosum L. | 1139 images |
| Chaerophyllum procumbens (L.) Crantz | 16 images |
| Chaerophyllum tainturieri Hook. & Arn. | 216 images |
| Chaiturus marrubiastrum (L.) Ehrh. ex Rchb. | 89 images |
| Chamaecrista fasciculata (Michx.) Greene | 973 images |
| Chamaecrista nictitans (L.) Moench | 269 images |
| Chamaecrista rotundifolia (Pers.) Greene | 71 images |
| Chamaecrista serpens (L.) Greene | 3 images |
| Chamaecyparis thyoides (L.) Britton, Sterns & Poggenb. | 109 images |
| Chamaedaphne calyculata (L.) Moench | 194 images |
| Chamaedorea seifrizii Burret | 2304 images |
| Chamaelirium luteum (L.) A.Gray | 48 images |
| Chamaemelum nobile (L.) All. | 2965 images |
| Chaptalia tomentosa Vent. | 19 images |
| Chasmanthium latifolium (Michx.) H.O.Yates | 605 images |
| Chelidonium majus L. | 27819 images |
| Chelone glabra L. | 546 images |
| Chelone lyonii Pursh | 301 images |
| Chelone obliqua L. | 302 images |
| Chenopodiastrum murale (L.) S.Fuentes, Uotila & Borsch | 1701 images |
| Chenopodium album L. | 15943 images |
| Chenopodium berlandieri Moq. | 50 images |
| Chenopodium betaceum Andrz. | 9 images |
| Chenopodium ficifolium Sm. | 2119 images |
| Chenopodium opulifolium Schrad. ex W.D.J.Koch & Ziz | 11 images |
| Chenopodium pratericola Rydb. | 26 images |
| Chenopodium standleyanum Aellen | 3 images |
| Chenopodium vulvaria L. | 1025 images |
| Chimaphila maculata (L.) Pursh | 855 images |
| Chimaphila umbellata (L.) W.P.C.Barton | 165 images |
| Chiococca alba (L.) Hitchc. | 185 images |
| Chionanthus pygmaeus Small | 10 images |
| Chionanthus virginicus L. | 783 images |
| Chloracantha spinosa (Benth.) G.L.Nesom | 5 images |
| Chloris barbata Sw. | 307 images |
| Chloris cucullata Bisch. | 7 images |
| Chloris gayana Kunth | 151 images |
| Chloris radiata (L.) Sw. | 14 images |
| Chloris truncata R.Br. | 7 images |
| Chloris verticillata Nutt. | 33 images |
| Chloris virgata Sw. | 87 images |
| Chondrilla juncea L. | 2290 images |
| Chorispora tenella (Pall.) DC. | 225 images |
| Chromolaena ivifolia (L.) R.M.King & H.Rob. | 8 images |
| Chromolaena odorata (L.) R.M.King & H.Rob. | 1097 images |
| Chrozophora tinctoria (L.) A.Juss. | 487 images |
| Chrysobalanus icaco L. | 510 images |
| Chrysogonum virginianum L. | 203 images |
| Chrysophyllum oliviforme L. | 39 images |
| Chrysopogon aciculatus (Retz.) Trin. | 27 images |
| Chrysopogon fulvus (Spreng.) Chiov. | 1 images |
| Chrysopogon zizanioides (L.) Roberty | 128 images |
| Chrysopsis floridana Small | 5 images |
| Chrysopsis gossypina (Michx.) Elliott | 1 images |
| Chrysopsis mariana Elliott | 57 images |
| Chrysopsis scabrella Torr. & A.Gray | 4 images |
| Chrysopsis subulata Small | 9 images |
| Chrysosplenium americanum Schwein. ex Hook. | 27 images |
| Cicer arietinum L. | 956 images |
| Cichorium intybus L. | 20546 images |
| Cicuta bulbifera L. | 42 images |
| Cicuta maculata L. | 380 images |
| Cienfuegosia yucatanensis Millsp. | 7 images |
| Cinna arundinacea L. | 19 images |
| Cinnamomum camphora (L.) J.Presl | 1850 images |
| Circaea alpina L. | 283 images |
| Circaea canadensis (L.) Hill | 78 images |
| Cirsium altissimum (L.) Spreng. | 323 images |
| Cirsium arvense (L.) Scop. | 18191 images |
| Cirsium discolor (Muhl. ex Willd.) Spreng. | 263 images |
| Cirsium horridulum Michx. | 266 images |
| Cirsium muticum Michx. | 72 images |
| Cirsium nuttallii DC. | 10 images |
| Cirsium texanum Buckley | 243 images |
| Cirsium undulatum Spreng. | 129 images |
| Cirsium vulgare (Savi) Ten. | 22430 images |
| Cissampelos pareira L. | 155 images |
| Cissus trifoliata (L.) L. | 21 images |
| Cissus verticillata (L.) Nicolson & C.E.Jarvis | 724 images |
| Citrullus amarus Schrad. | 1 images |
| Citrullus colocynthis (L.) Schrad. | 517 images |
| Citrullus lanatus (Thunb.) Matsum. & Nakai | 2667 images |
| Citrus × aurantiifolia (Christm.) Swingle | 1523 images |
| Citrus × aurantium L. | 9793 images |
| Citrus × limon (L.) Osbeck | 10588 images |
| Citrus medica L. | 1235 images |
| Citrus trifoliata L. | 3006 images |
| Cladanthus mixtus (L.) Chevall. | 441 images |
| Cladium mariscoides (Muhl.) Torr. | 4 images |
| Cladium mariscus (L.) Pohl | 340 images |
| Cladrastis kentukea (Dum.Cours.) Rudd | 453 images |
| Claytonia caroliniana Michx. | 318 images |
| Claytonia perfoliata Donn ex Willd. | 3515 images |
| Claytonia virginica L. | 1248 images |
| Cleistesiopsis divaricata (L.) Pansarin & F.Barros | 4 images |
| Clematis crispa L. | 113 images |
| Clematis fremontii S.Watson | 7 images |
| Clematis occidentalis (Hornem.) DC. | 64 images |
| Clematis ochroleuca Aiton | 10 images |
| Clematis pitcheri Torr. & A.Gray | 4 images |
| Clematis terniflora DC. | 1191 images |
| Clematis versicolor Small | 4 images |
| Clematis viorna L. | 88 images |
| Clematis virginiana L. | 1138 images |
| Cleome aculeata L. | 62 images |
| Cleome dodecandra L. | 157 images |
| Cleome erosa (Nutt.) Eaton | 3 images |
| Cleome gynandra L. | 508 images |
| Cleome houtteana Schltdl. | 2839 images |
| Cleome iberica DC. | 12 images |
| Cleome ornithopodioides L. | 12 images |
| Cleome rutidosperma DC. | 568 images |
| Cleome serrata Jacq. | 52 images |
| Cleome speciosa Raf. | 205 images |
| Cleome spinosa Jacq. | 1311 images |
| Cleome viscosa L. | 559 images |
| Clerodendrum bungei Steud. | 1557 images |
| Clerodendrum chinense (Osbeck) Mabb. | 343 images |
| Clerodendrum indicum (L.) Kuntze | 269 images |
| Clerodendrum quadriloculare (Blanco) Merr. | 552 images |
| Clerodendrum speciosissimum Jacob-Makoy | 108 images |
| Clerodendrum thomsoniae Balf.f. | 2359 images |
| Clerodendrum trichotomum Thunb. | 3967 images |
| Clerodendrum umbellatum Poir. | 182 images |
| Clethra acuminata Michx. | 31 images |
| Clethra alnifolia L. | 1086 images |
| Cliftonia monophylla (Lam.) Britton | 5 images |
| Clinopodium arkansanum (Nutt.) House | 1 images |
| Clinopodium brownei (Sw.) Kuntze | 27 images |
| Clinopodium glabellum (Michx.) Kuntze | 17 images |
| Clinopodium gracile (Benth.) Kuntze | 50 images |
| Clinopodium menthifolium (Host) Merino | 78 images |
| Clinopodium nepeta (L.) Kuntze | 7888 images |
| Clinopodium vulgare L. | 8911 images |
| Clintonia borealis (Aiton) Raf. | 826 images |
| Clintonia umbellulata (Michx.) Morong | 31 images |
| Clitoria fragrans Small | 1 images |
| Clitoria mariana L. | 146 images |
| Clusia rosea Jacq. | 1993 images |
| Cnidoscolus stimulosus (Michx.) Engelm. & A.Gray | 1 images |
| Cnidoscolus texanus (Müll.Arg.) Small | 2 images |
| Coccinia grandis (L.) Voigt | 913 images |
| Coccoloba diversifolia Jacq. | 45 images |
| Coccoloba uvifera (L.) L. | 2681 images |
| Coccothrinax argentata (Jacq.) L.H.Bailey | 8 images |
| Cocculus carolinus (L.) DC. | 400 images |
| Cocos nucifera L. | 2840 images |
| Coincya monensis (L.) Greuter & Burdet | 433 images |
| Coix lacryma-jobi L. | 386 images |
| Colchicum autumnale L. | 6747 images |
| Coleataenia anceps (Michx.) Soreng | 3 images |
| Coleus amboinicus Lour. | 4574 images |
| Collinsia verna Nutt. | 72 images |
| Collinsia violacea Nutt. | 11 images |
| Collinsonia canadensis L. | 155 images |
| Colocasia esculenta (L.) Schott | 5961 images |
| Colubrina arborescens (Mill.) Sarg. | 35 images |
| Colubrina asiatica (L.) Brongn. | 56 images |
| Colubrina elliptica (Sw.) Brizicky & W.L.Stern | 16 images |
| Comandra umbellata (L.) Nutt. | 105 images |
| Combretum indicum (L.) DeFilipps | 1823 images |
| Commelina benghalensis L. | 917 images |
| Commelina caroliniana Walter | 8 images |
| Commelina communis L. | 2530 images |
| Commelina diffusa Burm.f. | 692 images |
| Commelina erecta L. | 2077 images |
| Commelina forskaolii Vahl | 140 images |
| Commelina virginica L. | 61 images |
| Comptonia peregrina (L.) Coult. | 255 images |
| Condea floribunda (Briq.) Harley & J.F.B.Pastore | 2 images |
| Condea verticillata (Jacq.) Harley & J.F.B.Pastore | 20 images |
| Conium maculatum L. | 8427 images |
| Conocarpus erectus L. | 969 images |
| Conoclinium coelestinum DC. | 1365 images |
| Conopholis americana (L.) Wallr. | 340 images |
| Conradina canescens A.Gray | 12 images |
| Conradina cygniflora C.E.Edwards, Judd, Ionta & Herring | 1 images |
| Conradina glabra Shinners | 1 images |
| Conradina grandiflora Small | 6 images |
| Conradina verticillata Jennison | 5 images |
| Conringia orientalis (L.) C.Presl | 4 images |
| Consolea macracantha (Griseb.) A.Berger | 7 images |
| Convallaria majalis L. | 7906 images |
| Convallaria pseudomajalis W.Bartram | 6 images |
| Convolvulus arvensis L. | 18723 images |
| Convolvulus equitans Benth. | 146 images |
| Coptis trifolia (L.) Salisb. | 278 images |
| Corallorhiza maculata Raf. | 330 images |
| Corallorhiza odontorhiza (Willd.) Nutt. | 2 images |
| Corallorhiza trifida Châtel. | 206 images |
| Corallorhiza wisteriana Conrad | 34 images |
| Corchorus aestuans L. | 166 images |
| Corchorus hirsutus L. | 9 images |
| Corchorus hirtus L. | 22 images |
| Corchorus siliquosus L. | 30 images |
| Cordia dichotoma G.Forst. | 337 images |
| Cordia myxa L. | 289 images |
| Cordia sebestena L. | 1075 images |
| Coreopsis auriculata L. | 151 images |
| Coreopsis gladiata Walter | 17 images |
| Coreopsis grandiflora Hogg ex Sweet | 3021 images |
| Coreopsis lanceolata L. | 3279 images |
| Coreopsis leavenworthii Torr. & A.Gray | 40 images |
| Coreopsis major Walter | 142 images |
| Coreopsis nuecensis A.Heller | 15 images |
| Coreopsis palmata Nutt. | 71 images |
| Coreopsis pubescens Elliott | 24 images |
| Coreopsis rosea Nutt. | 16 images |
| Coreopsis tinctoria Nutt. | 3655 images |
| Coreopsis tripteris L. | 201 images |
| Coreopsis verticillata L. | 2306 images |
| Coriandrum sativum L. | 3569 images |
| Corispermum americanum (Nutt.) Nutt. | 2 images |
| Cornus alternifolia L.f. | 408 images |
| Cornus amomum Mill. | 747 images |
| Cornus asperifolia Michx. | 7 images |
| Cornus canadensis L. | 1596 images |
| Cornus drummondii C.A.Mey. | 40 images |
| Cornus florida L. | 6337 images |
| Cornus foemina Mill. | 45 images |
| Cornus kousa Bürger ex Hance | 3927 images |
| Cornus racemosa Lam. | 631 images |
| Cornus rugosa Lam. | 299 images |
| Cornus sericea L. | 8253 images |
| Coronilla varia L. | 11164 images |
| Cortaderia selloana (Schult. & Schult.f.) Asch. & Graebn. | 4798 images |
| Corydalis flavula (Raf.) DC. | 99 images |
| Corylus americana Walter | 84 images |
| Corylus cornuta Marshall | 2019 images |
| Corymbia torelliana (F.Muell.) K.D.Hill & L.A.S.Johnson | 83 images |
| Coryphopteris simulata (Davenp.) S.E.Fawc. | 1 images |
| Cosmos bipinnatus Cav. | 15139 images |
| Cosmos caudatus Kunth | 1243 images |
| Cosmos parviflorus (Jacq.) Pers. | 45 images |
| Cosmos sulphureus Cav. | 4614 images |
| Cota tinctoria (L.) J.Gay | 2877 images |
| Cotinus obovatus Raf. | 552 images |
| Cotoneaster simonsii Baker | 104 images |
| Cotula australis Hook.f. | 269 images |
| Cotula coronopifolia L. | 576 images |
| Couroupita guianensis Aubl. | 1829 images |
| Cranichis muscosa Sw. | 10 images |
| Crassocephalum crepidioides (Benth.) S.Moore | 408 images |
| Crataegus calpodendron (Ehrh.) Medik. | 10 images |
| Crataegus coccinea L. | 236 images |
| Crataegus coccinioides Ashe | 24 images |
| Crataegus collina Chapm. | 4 images |
| Crataegus crus-galli L. | 931 images |
| Crataegus fecunda Sarg. | 4 images |
| Crataegus harbisonii Beadle | 53 images |
| Crataegus intricata Lange | 10 images |
| Crataegus macracantha Lodd. ex Loudon | 10 images |
| Crataegus macrosperma Ashe | 10 images |
| Crataegus marshallii Eggl. | 91 images |
| Crataegus mollis (Torr. & A.Gray) Scheele | 42 images |
| Crataegus monogyna Jacq. | 25936 images |
| Crataegus nitida (Engelm. ex Britton & N.E.Br.) Sarg. | 4 images |
| Crataegus pennsylvanica Ashe | 6 images |
| Crataegus persimilis Sarg. | 589 images |
| Crataegus phaenopyrum (L.f.) Medik. | 254 images |
| Crataegus pruinosa (H.L.Wendl.) K.Koch | 9 images |
| Crataegus punctata Jacq. | 100 images |
| Crataegus scabrida Sarg. | 5 images |
| Crataegus succulenta Schrad. ex Link | 15 images |
| Crataegus uniflora Münchh. | 17 images |
| Crataegus viridis L. | 36 images |
| Crepis biennis L. | 5293 images |
| Crepis capillaris (L.) Wallr. | 10494 images |
| Crepis foetida L. | 2354 images |
| Crepis pulchra L. | 1151 images |
| Crepis setosa Haller f. | 3007 images |
| Crepis tectorum L. | 472 images |
| Crepis vesicaria L. | 3492 images |
| Crinum americanum L. | 385 images |
| Crinum asiaticum L. | 1956 images |
| Crinum bulbispermum (Burm.f.) Milne-Redh. & Schweick. | 462 images |
| Crinum zeylanicum (L.) L. | 13 images |
| Crocanthemum arenicola (Chapm.) Barnhart | 2 images |
| Crocanthemum bicknellii (Fernald) Janch. | 4 images |
| Crocanthemum canadense (L.) Britton | 1 images |
| Crocanthemum carolinianum (Walter) Spach | 6 images |
| Crocanthemum corymbosum (Michx.) Britton | 13 images |
| Crocanthemum georgianum (Chapm.) Barnhart | 7 images |
| Crocanthemum nashii (Britton) Barnhart | 1 images |
| Crocanthemum rosmarinifolium (Pursh) Janch. | 3 images |
| Crocosmia × crocosmiiflora (Lemoine) N.E.Br. | 7622 images |
| Crocus flavus Weston | 1173 images |
| Crocus vernus (L.) Hill | 6257 images |
| Croptilon divaricatum (Nutt.) Raf. | 17 images |
| Crossopetalum rhacoma Crantz | 26 images |
| Crotalaria alata Buch.-Ham. ex D.Don | 15 images |
| Crotalaria brevidens Benth. | 77 images |
| Crotalaria incana L. | 248 images |
| Crotalaria lanceolata E.Mey. | 70 images |
| Crotalaria ochroleuca G.Don | 4 images |
| Crotalaria pallida Aiton | 495 images |
| Crotalaria pumila Ortega | 67 images |
| Crotalaria purshii DC. | 1 images |
| Crotalaria retusa L. | 758 images |
| Crotalaria sagittalis L. | 62 images |
| Crotalaria spectabilis Roth | 210 images |
| Crotalaria trichotoma Bojer | 23 images |
| Croton argyranthemus Michx. | 3 images |
| Croton capitatus Michx. | 236 images |
| Croton glandulosus L. | 96 images |
| Croton humilis L. | 3 images |
| Croton monanthogynus Michx. | 127 images |
| Croton punctatus Jacq. | 24 images |
| Cruciata pedemontana (Bellardi) Ehrend. | 142 images |
| Cryptostegia grandiflora Roxb. ex R.Br. | 54 images |
| Cryptostegia madagascariensis Bojer ex Decne. | 414 images |
| Cryptotaenia canadensis (L.) DC. | 282 images |
| Ctenitis submarginalis (Langsd. & Fisch.) Ching | 51 images |
| Ctenodon histrix (Poir.) D.B.O.S.Cardoso, P.L.R.Moraes & H.C.Lima | 5 images |
| Cucumis anguria L. | 212 images |
| Cucumis melo L. | 5424 images |
| Cucumis metuliferus E.Mey. ex Naudin | 163 images |
| Cucumis sativus L. | 5304 images |
| Cucurbita foetidissima Kunth | 293 images |
| Cucurbita maxima Duchesne | 5736 images |
| Cucurbita moschata Duchesne | 3362 images |
| Cucurbita pepo L. | 7829 images |
| Cullen americanum (L.) Rydb. | 5 images |
| Cunila origanoides (L.) Britton | 52 images |
| Cupania glabra Sw. | 42 images |
| Cupaniopsis anacardioides (A.Rich.) Radlk. | 337 images |
| Cuphea aspera Chapm. | 45 images |
| Cuphea carthagenensis (Jacq.) J.F.Macbr. | 114 images |
| Cuphea glutinosa Cham. & Schltdl. | 47 images |
| Cuphea hyssopifolia Kunth | 3208 images |
| Cuphea procumbens Ortega | 18 images |
| Cuphea strigulosa Kunth | 22 images |
| Cuphea viscosissima Jacq. | 73 images |
| Curcuma zanthorrhiza Roxb. | 2 images |
| Cuscuta americana L. | 24 images |
| Cuscuta approximata Bab. | 43 images |
| Cuscuta campestris Yunck. | 710 images |
| Cuscuta cephalanthi Engelm. | 4 images |
| Cuscuta compacta Juss. ex Choisy | 1 images |
| Cuscuta epilinum Weihe | 15 images |
| Cuscuta epithymum (L.) L. | 1278 images |
| Cuscuta exaltata Engelm. | 4 images |
| Cuscuta glomerata Choisy | 2 images |
| Cuscuta gronovii Willd. ex Schult. | 4 images |
| Cuscuta indecora Choisy | 15 images |
| Cuscuta pentagona Engelm. | 12 images |
| Cuscuta polygonorum Engelm. | 2 images |
| Cuscuta suaveolens Ser. | 1 images |
| Cuscuta umbellata Kunth | 4 images |
| Cyanthillium cinereum (L.) H.Rob. | 922 images |
| Cycas revoluta Thunb. | 6706 images |
| Cyclachaena xanthiifolia (Nutt.) Fresen. | 125 images |
| Cyclopogon cranichoides (Griseb.) Schltr. | 2 images |
| Cyclopogon elatus (Sw.) Schltr. | 11 images |
| Cyclospermum leptophyllum (Pers.) Sprague ex Britton & P.Wilson | 443 images |
| Cydonia oblonga Mill. | 10968 images |
| Cymbalaria muralis G.Gaertn., B.Mey. & Scherb. | 2506 images |
| Cymbopogon citratus (DC.) Stapf | 1262 images |
| Cymbopogon flexuosus (Nees ex Steud.) W.Watson | 1 images |
| Cymbopogon iwarancusa (Jones ex Roxb.) Schult. | 3 images |
| Cymbopogon nardus (L.) Rendle | 58 images |
| Cynanchum laeve (Michx.) Pers. | 237 images |
| Cynodon aethiopicus Clayton & J.R.Harlan | 1 images |
| Cynodon dactylon (L.) Pers. | 2922 images |
| Cynodon incompletus Nees | 1 images |
| Cynodon nlemfuensis Vanderyst | 35 images |
| Cynodon plectostachyus (K.Schum.) Pilg. | 86 images |
| Cynodon transvaalensis Burtt Davy | 1 images |
| Cynoglossum amabile Stapf & J.R.Drumm. | 1062 images |
| Cynoglossum creticum Mill. | 3852 images |
| Cynoglossum officinale L. | 3494 images |
| Cynosurus cristatus L. | 849 images |
| Cynosurus echinatus L. | 674 images |
| Cyperus aggregatus (Willd.) Endl. | 60 images |
| Cyperus albostriatus Schrad. | 22 images |
| Cyperus alopecuroides Rottb. | 73 images |
| Cyperus alternifolius L. | 2454 images |
| Cyperus articulatus L. | 35 images |
| Cyperus bipartitus Torr. | 8 images |
| Cyperus blepharoleptos Steud. | 3 images |
| Cyperus brevifolioides Thieret & Delahouss. | 4 images |
| Cyperus brevifolius (Rottb.) Hassk. | 171 images |
| Cyperus compressus L. | 48 images |
| Cyperus cuspidatus Kunth | 1 images |
| Cyperus difformis L. | 133 images |
| Cyperus digitatus Roxb. | 3 images |
| Cyperus distans L.f. | 8 images |
| Cyperus entrerianus Boeckeler | 12 images |
| Cyperus eragrostis Lam. | 2855 images |
| Cyperus erythrorhizos Muhl. | 1 images |
| Cyperus esculentus L. | 1004 images |
| Cyperus flavescens L. | 69 images |
| Cyperus fuscus L. | 348 images |
| Cyperus giganteus Vahl | 47 images |
| Cyperus granitophilus McVaugh | 1 images |
| Cyperus haspan L. | 170 images |
| Cyperus hortensis (Salzm. ex Steud.) Dorr | 144 images |
| Cyperus hyalinus Vahl | 2 images |
| Cyperus hystricoides (B.Nord.) Bauters | 3 images |
| Cyperus iria L. | 57 images |
| Cyperus laevigatus L. | 56 images |
| Cyperus lanceolatus Poir. | 6 images |
| Cyperus ligularis L. | 79 images |
| Cyperus lupulinus (Biehler) Marcks | 2 images |
| Cyperus macrostachyos Lam. | 5 images |
| Cyperus metzii (Hochst. ex Steud.) Mattf. & Kük. | 3 images |
| Cyperus microiria Steud. | 26 images |
| Cyperus ochraceus Vahl | 7 images |
| Cyperus odoratus L. | 132 images |
| Cyperus papyrus L. | 1355 images |
| Cyperus pedunculatus (R.Br.) J.Kern | 8 images |
| Cyperus polystachyos Rottb. | 37 images |
| Cyperus prolifer Lam. | 10 images |
| Cyperus prolixus Kunth | 5 images |
| Cyperus pseudovegetus Steud. | 5 images |
| Cyperus pumilus L. | 3 images |
| Cyperus reflexus Vahl | 3 images |
| Cyperus richardii Steud. | 60 images |
| Cyperus rotundus L. | 1185 images |
| Cyperus sanguinolentus Vahl | 2 images |
| Cyperus serotinus Rottb. | 15 images |
| Cyperus sesquiflorus (Torr.) Mattf. & Kük. | 35 images |
| Cyperus sphacelatus Rottb. | 21 images |
| Cyperus squarrosus L. | 27 images |
| Cyperus strigosus L. | 385 images |
| Cyperus subsquarrosus (Muhl.) Bauters | 162 images |
| Cyperus surinamensis Rottb. | 29 images |
| Cyperus virens Michx. | 12 images |
| Cypripedium acaule Aiton | 951 images |
| Cypripedium candidum Muhl. ex Willd. | 44 images |
| Cypripedium kentuckiense C.F.Reed | 2 images |
| Cypripedium parviflorum Salisb. | 316 images |
| Cypripedium reginae Walter | 221 images |
| Cyrilla racemiflora L. | 81 images |
| Cyrtomium caryotideum (Wall. ex Hook. & Grev.) C.Presl | 9 images |
| Cyrtomium falcatum (L.f.) C.Presl | 484 images |
| Cyrtomium fortunei J.Sm. | 471 images |
| Cyrtopodium flavum (Nees) Link & Otto ex Rchb. | 28 images |
| Cyrtopodium punctatum (L.) Lindl. | 17 images |
| Cystopteris × tennesseensis Shaver | 13 images |
| Cystopteris bulbifera (L.) Bernh. | 99 images |
| Cystopteris fragilis (L.) Bernh. | 1302 images |
| Cystopteris protrusa (Weath.) Blasdell | 43 images |
| Cystopteris tenuis (Michx.) Desv. | 3 images |
| Cytisus scoparius (L.) Link | 12678 images |
| Dactylis glomerata L. | 11255 images |
| Dactyloctenium aegyptium (L.) Willd. | 454 images |
| Dactyloctenium geminatum Hack. | 1 images |
| Dactyloctenium radulans (R.Br.) P.Beauv. | 262 images |
| Dactylorhiza viridis (L.) R.M.Bateman, Pridgeon & M.W.Chase | 929 images |
| Dalbergia ecastaphyllum (L.) Taub. | 91 images |
| Dalbergia sissoo Roxb. ex DC. | 52 images |
| Dalea candida Willd. | 18 images |
| Dalea compacta Spreng. | 18 images |
| Dalea lanata Spreng. | 4 images |
| Dalea leporina (Aiton) Bullock | 28 images |
| Dalea purpurea Vent. | 275 images |
| Dalea villosa (Nutt.) Spreng. | 3 images |
| Dalechampia scandens L. | 57 images |
| Dalibarda repens L. | 31 images |
| Damburneya coriacea (Sw.) Trofimov & Rohwer | 25 images |
| Danthonia compressa Austin | 4 images |
| Danthonia intermedia Vasey | 6 images |
| Dasistoma macrophylla (Nutt.) Raf. | 61 images |
| Datura innoxia Mill. | 1951 images |
| Datura metel L. | 677 images |
| Datura quercifolia Kunth | 1 images |
| Datura stramonium L. | 16072 images |
| Datura wrightii Regel | 1473 images |
| Daucus carota L. | 28160 images |
| Daucus pusillus Michx. | 223 images |
| Decodon verticillatus (L.) Elliott | 62 images |
| Deeringothamnus rugelii (B.L.Rob.) Small | 1 images |
| Delphinium ajacis L. | 6733 images |
| Delphinium carolinianum Walter | 163 images |
| Delphinium consolida L. | 2938 images |
| Delphinium exaltatum Aiton | 19 images |
| Delphinium pubescens DC. | 69 images |
| Delphinium tricorne Michx. | 221 images |
| Dendrophylax lindenii (Lindl.) Benth. ex Rolfe | 11 images |
| Dennstaedtia bipinnata (Cav.) Maxon | 8 images |
| Dennstaedtia punctilobula (Michx.) T.Moore | 4 images |
| Deparia acrostichoides (Sw.) M.Kato | 53 images |
| Deparia petersenii (Kunze) M.Kato | 54 images |
| Deschampsia cespitosa (L.) P.Beauv. | 633 images |
| Deschampsia elongata (Hook.) Munro | 3 images |
| Descurainia pinnata (Walter) Britton | 165 images |
| Descurainia sophia (L.) Webb ex Prantl | 832 images |
| Desmanthus illinoensis (Michx.) MacMill. ex B.L.Rob. & Fernald | 147 images |
| Desmanthus leptophyllus Kunth | 12 images |
| Desmanthus virgatus (L.) Willd. | 246 images |
| Desmodium canadense (L.) DC. | 289 images |
| Desmodium canescens (L.) DC. | 8 images |
| Desmodium glabellum (Michx.) DC. | 7 images |
| Desmodium incanum (Sw.) DC. | 175 images |
| Desmodium paniculatum (L.) DC. | 619 images |
| Desmodium scorpiurus (Sw.) Desv. ex DC. | 20 images |
| Desmodium tortuosum (Sw.) DC. | 186 images |
| Deutzia crenata Siebold & Zucc. | 661 images |
| Deutzia gracilis Siebold & Zucc. | 2993 images |
| Deutzia parviflora Bunge | 5 images |
| Dianella ensifolia (L.) Redouté | 61 images |
| Dianthera americana L. | 196 images |
| Dianthera angusta (Chapm.) Small | 2 images |
| Dianthera pectoralis (Jacq.) J.F.Gmel. | 88 images |
| Dianthus armeria L. | 2738 images |
| Dianthus barbatus L. | 11767 images |
| Dianthus deltoides L. | 4522 images |
| Dianthus plumarius L. | 1675 images |
| Diaperia prolifera (Nutt. ex DC.) Nutt. | 1 images |
| Diaperia verna (Raf.) Morefield | 8 images |
| Dicentra canadensis (Goldie) Walp. | 155 images |
| Dicentra cucullaria (L.) Bernh. | 664 images |
| Dicentra eximia (Ker Gawl.) Torr. | 115 images |
| Dicerandra frutescens Shinners | 2 images |
| Dichanthelium acuminatum (Sw.) Gould & C.A.Clark | 49 images |
| Dichanthelium clandestinum (L.) Gould | 235 images |
| Dichanthelium latifolium (L.) Harvill | 2 images |
| Dichanthelium oligosanthes (Schult.) Gould | 36 images |
| Dichanthelium sabulorum (Lam.) Gould & C.A.Clark | 1 images |
| Dichanthelium scribnerianum (Nash) J.R.Thomas | 2 images |
| Dichanthium annulatum (Forssk.) Stapf | 76 images |
| Dichanthium aristatum (Poir.) C.E.Hubb. | 271 images |
| Dichanthium sericeum (R.Br.) A.Camus | 5 images |
| Dichodon viscidum (M.Bieb.) Holub | 43 images |
| Dichondra carolinensis Michx. | 232 images |
| Dichondra micrantha Urb. | 1153 images |
| Dichrostachys cinerea (L.) Wight & Arn. | 538 images |
| Dicliptera brachiata Spreng. | 74 images |
| Dicliptera sexangularis (L.) Juss. | 13 images |
| Dicranopteris flexuosa (Schrad.) Underw. | 5 images |
| Diervilla lonicera Mill. | 737 images |
| Diervilla rivularis Gatt. | 3 images |
| Diervilla sessilifolia Buckley | 125 images |
| Digitalis lanata Ehrh. | 244 images |
| Digitalis lutea L. | 3219 images |
| Digitalis purpurea L. | 22177 images |
| Digitaria bicornis (Lam.) Roem. & Schult. | 5 images |
| Digitaria ciliaris (Retz.) Koeler | 238 images |
| Digitaria didactyla Willd. | 9 images |
| Digitaria eriantha Steud. | 27 images |
| Digitaria filiformis (L.) Koeler | 7 images |
| Digitaria horizontalis Willd. | 6 images |
| Digitaria insularis (L.) Mez ex Ekman | 43 images |
| Digitaria ischaemum (Schreb.) Muhl. | 53 images |
| Digitaria longiflora (Retz.) Pers. | 1 images |
| Digitaria milanjiana (Rendle) Stapf | 3 images |
| Digitaria nuda Schumach. | 4 images |
| Digitaria sanguinalis (L.) Scop. | 2666 images |
| Digitaria setigera Roth | 14 images |
| Digitaria violascens Link | 13 images |
| Dimocarpus longan Lour. | 598 images |
| Dinebra retroflexa (Vahl) Panz. | 46 images |
| Diodia virginiana L. | 428 images |
| Dionaea muscipula J.Ellis | 1850 images |
| Dioscorea alata L. | 363 images |
| Dioscorea bulbifera L. | 595 images |
| Dioscorea floridana Bartlett | 1 images |
| Dioscorea polystachya Turcz. | 57 images |
| Dioscorea sansibarensis Pax | 47 images |
| Dioscorea villosa L. | 314 images |
| Diospyros ebenum J.Koenig ex Retz. | 9 images |
| Diospyros maritima Blume | 8 images |
| Diospyros nigra (J.F.Gmel.) Perr. | 189 images |
| Diospyros virginiana L. | 2725 images |
| Diplachne fusca (L.) P.Beauv. ex Roem. & Schult. | 44 images |
| Diplazium esculentum (Retz.) Sw. | 63 images |
| Diplazium lonchophyllum Kunze | 1 images |
| Diplotaxis muralis (L.) DC. | 954 images |
| Diplotaxis siifolia Kunze | 8 images |
| Diplotaxis tenuifolia (L.) DC. | 6442 images |
| Dipsacus fullonum L. | 15294 images |
| Dipsacus laciniatus L. | 1103 images |
| Dipsacus sativus (L.) Honck. | 2976 images |
| Dirca palustris L. | 89 images |
| Distichlis littoralis (Engelm.) H.L.Bell & Columbus | 6 images |
| Distichlis spicata (L.) Greene | 97 images |
| Distimake dissectus (Jacq.) A.R.Simões & Staples | 278 images |
| Distimake quinquefolius (L.) A.R.Simões & Staples | 86 images |
| Distimake tuberosus (L.) A.R.Simões & Staples | 440 images |
| Dittrichia viscosa (L.) Greuter | 9484 images |
| Dodonaea viscosa Jacq. | 361 images |
| Doellingeria infirma Greene | 6 images |
| Doellingeria umbellata (Mill.) Nees | 561 images |
| Dopatrium junceum (Roxb.) Buch.-Ham. ex Benth. | 1 images |
| Dorstenia contrajerva L. | 98 images |
| Draba verna L. | 2822 images |
| Dracaena angolensis (Welw. ex Carrière) Byng & Christenh. | 1894 images |
| Dracaena hyacinthoides (L.) Mabb. | 2224 images |
| Dracaena trifasciata (Prain) Mabb. | 12699 images |
| Dracocephalum parviflorum Nutt. | 39 images |
| Drosera brevifolia Pursh | 69 images |
| Drosera capillaris Poir. | 143 images |
| Drosera filiformis Raf. | 77 images |
| Drosera intermedia Hayne | 453 images |
| Drosera rotundifolia L. | 1654 images |
| Drymaria cordata (L.) Willd. ex Schult. | 397 images |
| Drymocallis arguta (Pursh) Rydb. | 14 images |
| Dryopteris × australis (Wherry) Small | 1 images |
| Dryopteris × boottii (Tuck.) Underw. | 4 images |
| Dryopteris × uliginosa (A.Braun ex Döll) Kuntze ex Druce | 1 images |
| Dryopteris campyloptera Clarkson | 1 images |
| Dryopteris carthusiana (Vill.) H.P.Fuchs | 1010 images |
| Dryopteris celsa (W.Palmer) Knowlt., T.S.Palmer & Pollard ex Small | 7 images |
| Dryopteris clintoniana (D.C.Eaton) Dowell | 7 images |
| Dryopteris cristata (L.) A.Gray | 334 images |
| Dryopteris erythrosora (D.C.Eaton) Kuntze | 245 images |
| Dryopteris filix-mas (L.) Schott | 7319 images |
| Dryopteris goldieana (Hook. ex Goldie) A.Gray | 16 images |
| Dryopteris intermedia A.Gray | 12 images |
| Dryopteris ludoviciana (Kunze) Small | 15 images |
| Dryopteris marginalis (L.) A.Gray | 5 images |
| Dulichium arundinaceum (L.) Britton | 49 images |
| Duranta erecta L. | 9246 images |
| Dyschoriste angusta (A.Gray) Small | 2 images |
| Dyschoriste humistrata (Michx.) Kuntze | 1 images |
| Dyschoriste oblongifolia (Michx.) Kuntze | 13 images |
| Dysphania ambrosioides (L.) Mosyakin & Clemants | 1459 images |
| Dysphania anthelmintica (L.) Mosyakin & Clemants | 1 images |
| Dysphania atriplicifolia (Spreng.) G.Kadereit, Sukhor. & Uotila | 62 images |
| Dysphania botrys (L.) Mosyakin & Clemants | 140 images |
| Dysphania incisa (Poir.) ined. | 1 images |
| Dysphania multifida (L.) Mosyakin & Clemants | 65 images |
| Dysphania plantaginella F.Muell. | 1 images |
| Dysphania pumilio (R.Br.) Mosyakin & Clemants | 316 images |
| Dyssodia papposa (Vent.) Hitchc. | 32 images |
| Ecballium elaterium (L.) A.Rich. | 5854 images |
| Echinacea angustifolia DC. | 1897 images |
| Echinacea pallida (Nutt.) Nutt. | 930 images |
| Echinacea paradoxa Britton | 15 images |
| Echinacea purpurea (L.) Moench | 7505 images |
| Echinacea sanguinea Nutt. | 11 images |
| Echinacea simulata McGregor | 4 images |
| Echinacea tennesseensis (Beadle) Small | 96 images |
| Echinochloa colonum (L.) Link | 243 images |
| Echinochloa crus-galli (L.) P.Beauv. | 3219 images |
| Echinochloa crus-pavonis (Kunth) Schult. | 6 images |
| Echinochloa frumentacea Link | 17 images |
| Echinochloa muricata (P.Beauv.) Fernald | 54 images |
| Echinochloa polystachya (Kunth) Hitchc. | 6 images |
| Echinochloa walteri (Pursh) A.Heller | 1 images |
| Echinocystis lobata (Michx.) Torr. & A.Gray | 928 images |
| Echinodorus berteroi (Spreng.) Fassett | 13 images |
| Echinops sphaerocephalus L. | 3496 images |
| Echites umbellatus Jacq. | 13 images |
| Echium italicum L. | 2418 images |
| Echium vulgare L. | 36524 images |
| Eclipta prostrata (L.) L. | 1466 images |
| Edgeworthia chrysantha Lindl. | 846 images |
| Edgeworthia gardneri (Wall.) Meisn. | 37 images |
| Elaeagnus angustifolia L. | 5529 images |
| Elaeagnus commutata Bernh. ex Rydb. | 263 images |
| Elaeagnus multiflora Thunb. | 198 images |
| Elaeagnus pungens Thunb. | 5382 images |
| Elaeagnus umbellata Thunb. | 2909 images |
| Elatine triandra Schkuhr | 43 images |
| Eleocharis acicularis (L.) Roem. & Schult. | 61 images |
| Eleocharis acutangula (Roxb.) Schult. | 26 images |
| Eleocharis albida Torr. | 2 images |
| Eleocharis atropurpurea (Retz.) J.Presl & C.Presl | 4 images |
| Eleocharis baldwinii (Torr.) Chapm. | 3 images |
| Eleocharis cellulosa Torr. | 1 images |
| Eleocharis compressa Sull. | 16 images |
| Eleocharis confervoides (Poir.) Steud. | 4 images |
| Eleocharis elegans (Kunth) Roem. & Schult. | 114 images |
| Eleocharis elongata Chapm. | 1 images |
| Eleocharis erythropoda Steud. | 7 images |
| Eleocharis exigua (Kunth) Roem. & Schult. | 2 images |
| Eleocharis flavescens (Poir.) Urb. | 8 images |
| Eleocharis geniculata (L.) Roem. & Schult. | 6 images |
| Eleocharis interstincta (Vahl) Roem. & Schult. | 12 images |
| Eleocharis macrostachya Britton | 11 images |
| Eleocharis montana (Kunth) Roem. & Schult. | 2 images |
| Eleocharis mutata (L.) Roem. & Schult. | 11 images |
| Eleocharis nigrescens (Nees) Kunth | 7 images |
| Eleocharis obtusa (Willd.) Schult. | 40 images |
| Eleocharis ovata (Roth) Roem. & Schult. | 46 images |
| Eleocharis palustris (L.) Roem. & Schult. | 732 images |
| Eleocharis parvula (Roem. & Schult.) Link ex Bluff, Nees & Schauer | 41 images |
| Eleocharis retroflexa (Poir.) Urb. | 12 images |
| Eleocharis setifolia (A.Rich.) J.Raynal | 1 images |
| Eleocharis tortilis (Link) Schult. | 1 images |
| Eleocharis tuberculosa (Michx.) Roem. & Schult. | 1 images |
| Eleocharis uniglumis (Link) Schult. | 30 images |
| Elephantopus carolinianus Raeusch. | 61 images |
| Elephantopus elatus Bertol. | 320 images |
| Elephantopus nudatus A.Gray | 1 images |
| Elephantopus tomentosus L. | 37 images |
| Eleusine africana Kenn.-O'Byrne | 12 images |
| Eleusine coracana (L.) Gaertn. | 49 images |
| Eleusine indica (L.) Gaertn. | 1076 images |
| Eleusine tristachya (Lam.) Lam. | 162 images |
| Eleutherococcus sieboldianus (Makino) Koidz. | 16 images |
| Elionurus tripsacoides Willd. | 4 images |
| Ellisia nyctelea (L.) L. | 58 images |
| Elodea canadensis Michx. | 260 images |
| Elodea densa (Planch.) Casp. | 126 images |
| Elodea nuttallii (Planch.) H.St.John | 97 images |
| Elsholtzia ciliata (Thunb.) Hyl. | 51 images |
| Eltroplectris calcarata (Sw.) Garay & H.R.Sweet | 4 images |
| Elymus canadensis L. | 157 images |
| Elymus elymoides (Raf.) Swezey | 21 images |
| Elymus glaucus Buckley | 13 images |
| Elymus hystrix L. | 71 images |
| Elymus repens (L.) Gould | 739 images |
| Elymus riparius Wiegand | 5 images |
| Elymus villosus Muhl. ex Willd. | 7 images |
| Elymus violaceus (Hornem.) J.Feilberg | 8 images |
| Elymus virginicus L. | 67 images |
| Elytraria caroliniensis (J.F.Gmel.) Pers. | 4 images |
| Emilia fosbergii Nicolson | 704 images |
| Emilia sonchifolia (L.) DC. | 502 images |
| Encyclia rufa (Lindl.) Britton & Millsp. | 2 images |
| Encyclia tampensis (Lindl.) Small | 113 images |
| Enemion biternatum Raf. | 8 images |
| Engelmannia peristenia (Raf.) Goodman & C.A.Lawson | 18 images |
| Enneapogon desvauxii P.Beauv. | 18 images |
| Enteropogon prieurii (Kunth) Clayton | 2 images |
| Epidendrum acunae Dressler | 16 images |
| Epidendrum amphistomum A.Rich. | 1 images |
| Epidendrum conopseum R.Br. | 9 images |
| Epidendrum nocturnum Jacq. | 147 images |
| Epidendrum rigidum Jacq. | 55 images |
| Epidendrum strobiliferum Rchb.f. | 27 images |
| Epifagus virginiana (L.) Barton | 115 images |
| Epigaea repens L. | 194 images |
| Epilobium angustifolium L. | 19724 images |
| Epilobium brachycarpum C.Presl | 302 images |
| Epilobium ciliatum Raf. | 4685 images |
| Epilobium coloratum Biehler | 85 images |
| Epilobium hirsutum L. | 15280 images |
| Epilobium leptophyllum Raf. | 9 images |
| Epipactis helleborine (L.) Crantz | 7327 images |
| Epiphyllum hookeri Haw. | 139 images |
| Epipremnum aureum (Linden & André) G.S.Bunting | 12346 images |
| Equisetum × ferrissii Clute | 6 images |
| Equisetum × litorale Kühlew. ex Rupr. | 16 images |
| Equisetum arvense L. | 6631 images |
| Equisetum fluviatile L. | 897 images |
| Equisetum laevigatum A.Braun & Engelm. | 78 images |
| Equisetum ramosissimum Desf. | 883 images |
| Equisetum sylvaticum L. | 2624 images |
| Eragrostis atrovirens (Desf.) Trin. ex Steud. | 4 images |
| Eragrostis barrelieri Daveau | 68 images |
| Eragrostis cilianensis (All.) Vignolo ex Janch. | 187 images |
| Eragrostis ciliaris (L.) R.Br. | 8 images |
| Eragrostis cumingii Steud. | 7 images |
| Eragrostis curvula (Schrad.) Nees | 97 images |
| Eragrostis cylindriflora Hochst. | 56 images |
| Eragrostis elongata (Willd.) J.Jacq. | 112 images |
| Eragrostis gangetica (Roxb.) Steud. | 3 images |
| Eragrostis hypnoides (Lam.) Britton, Sterns & Poggenb. | 5 images |
| Eragrostis japonica (Thunb.) Trin. | 5 images |
| Eragrostis mexicana (Hornem.) Link | 28 images |
| Eragrostis minor Host | 350 images |
| Eragrostis pectinacea (Michx.) Nees | 28 images |
| Eragrostis pilosa (L.) P.Beauv. | 69 images |
| Eragrostis plana Nees | 5 images |
| Eragrostis prolifera (Sw.) Steud. | 9 images |
| Eragrostis secundiflora J.Presl | 1 images |
| Eragrostis spectabilis (Pursh) Steud. | 206 images |
| Eragrostis tef (Zuccagni) Trotter | 9 images |
| Eragrostis tenella (L.) P.Beauv. ex Roem. & Schult. | 32 images |
| Eragrostis unioloides (Retz.) Nees ex Steud. | 139 images |
| Eragrostis viscosa (Retz.) Trin. | 8 images |
| Eranthemum pulchellum Andrews | 342 images |
| Eranthis hyemalis (L.) Salisb. | 4388 images |
| Erechtites hieraciifolius (L.) Raf. ex DC. | 2000 images |
| Eremochloa ophiuroides (Munro) Hack. | 2 images |
| Erianthus alopecuroides (L.) Elliott | 24 images |
| Erianthus giganteus (Walter) P.Beauv. | 4 images |
| Erica tetralix L. | 1348 images |
| Erigenia bulbosa (Michx.) Nutt. | 72 images |
| Erigeron annuus (L.) Desf | 853 images |
| Erigeron canadensis L. | 15304 images |
| Erigeron divaricatus Michx. | 29 images |
| Erigeron floribundus (Kunth) Sch.Bip. | 1988 images |
| Erigeron philadelphicus L. | 3535 images |
| Erigeron procumbens (Mill.) G.L.Nesom | 3 images |
| Erigeron pulchellus Michx. | 256 images |
| Erigeron quercifolius Lam. | 89 images |
| Erigeron strigosus Muhl. ex Willd. | 6032 images |
| Eriocaulon aquaticum (Hill) Druce | 41 images |
| Eriocaulon cinereum R.Br. | 1 images |
| Eriocaulon compressum Lam. | 1 images |
| Eriocaulon decangulare L. | 9 images |
| Eriocaulon parkeri B.L.Rob. | 1 images |
| Eriochloa barbatus (Trin.) S.Yadav & M.R.Almeida | 14 images |
| Eriochloa procera (Retz.) C.E.Hubb. | 9 images |
| Eriochloa villosa (Thunb.) Kunth | 6 images |
| Eriocoma hymenoides (Roem. & Schult.) Rydb. | 1 images |
| Eriogonum allenii S.Watson | 9 images |
| Eriogonum longifolium Nutt. | 9 images |
| Eriogonum multiflorum Benth. | 16 images |
| Eriogonum tomentosum Michx. | 8 images |
| Eriophorum virginicum L. | 37 images |
| Erithalis fruticosa L. | 72 images |
| Ernodea littoralis Sw. | 69 images |
| Erodium cicutarium (L.) L'Hér. | 13520 images |
| Erodium moschatum (L.) L'Hér. | 4893 images |
| Eruca vesicaria (L.) Cav. | 4294 images |
| Erucastrum gallicum (Willd.) O.E.Schulz | 332 images |
| Eryngium aquaticum L. | 20 images |
| Eryngium campestre L. | 5965 images |
| Eryngium foetidum L. | 685 images |
| Eryngium heterophyllum Engelm. | 38 images |
| Eryngium hookeri Walp. | 13 images |
| Eryngium integrifolium Walter | 5 images |
| Eryngium leavenworthii Torr. & A.Gray | 125 images |
| Eryngium maritimum L. | 4525 images |
| Eryngium planum L. | 2372 images |
| Eryngium prostratum Nutt. ex DC. | 16 images |
| Eryngium yuccifolium Michx. | 508 images |
| Erysimum asperum (Nutt.) DC. | 117 images |
| Erysimum capitatum (Douglas) Greene | 15 images |
| Erysimum cheiranthoides L. | 1250 images |
| Erysimum repandum L. | 54 images |
| Erysimum virgatum Roth | 121 images |
| Erythranthe floribunda (Lindl.) G.L.Nesom | 9 images |
| Erythranthe guttata (DC.) G.L.Nesom | 903 images |
| Erythranthe moschata (Douglas ex Lindl.) G.L.Nesom | 19 images |
| Erythrina herbacea L. | 375 images |
| Erythronium albidum Nutt. | 209 images |
| Erythronium americanum Ker Gawl. | 1441 images |
| Erythronium dens-canis L. | 3170 images |
| Erythronium rostratum W.Wolf | 13 images |
| Erythronium umbilicatum C.R.Parks & Hardin | 8 images |
| Erythroxylum havanense Jacq. | 43 images |
| Eschscholzia californica Cham. | 15112 images |
| Eucalyptus grandis W.Hill ex Maiden | 3 images |
| Eucalyptus robusta Sm. | 488 images |
| Eugenia axillaris (Sw.) Willd. | 44 images |
| Eugenia confusa DC. | 11 images |
| Eugenia foetida Pers. | 12 images |
| Eugenia rhombea (O.Berg) Krug & Urb. | 5 images |
| Eugenia uniflora L. | 3154 images |
| Eulophia alta (L.) Fawc. & Rendle | 36 images |
| Eulophia graminea Lindl. | 21 images |
| Eulophia maculata (Lindl.) Rchb.f. | 399 images |
| Euonymus alatus (Thunb.) Siebold | 3657 images |
| Euonymus americanus L. | 476 images |
| Euonymus atropurpureus Jacq. | 134 images |
| Euonymus europaeus L. | 22200 images |
| Euonymus fortunei (Turcz.) Hand.-Mazz. | 7094 images |
| Eupatorium album L. | 7 images |
| Eupatorium altissimum L. | 138 images |
| Eupatorium cannabinum L. | 23499 images |
| Eupatorium capillifolium (Lam.) Small ex Porter & Britton | 634 images |
| Eupatorium hyssopifolium L. | 75 images |
| Eupatorium mohrii Greene | 4 images |
| Eupatorium perfoliatum L. | 1039 images |
| Eupatorium pilosum Walter | 8 images |
| Eupatorium resinosum Torr. ex DC. | 5 images |
| Eupatorium rotundifolium L. | 38 images |
| Eupatorium serotinum Michx. | 1158 images |
| Eupatorium sessilifolium L. | 9 images |
| Euphorbia corollata L. | 234 images |
| Euphorbia cyparissias L. | 16952 images |
| Euphorbia davidii Subils | 58 images |
| Euphorbia dentata Michx. | 28 images |
| Euphorbia falcata L. | 190 images |
| Euphorbia glyptosperma Engelm. | 36 images |
| Euphorbia graminea Jacq. | 244 images |
| Euphorbia helioscopia L. | 9063 images |
| Euphorbia heterophylla L. | 1183 images |
| Euphorbia hirta L. | 1348 images |
| Euphorbia hypericifolia L. | 2094 images |
| Euphorbia hyssopifolia L. | 151 images |
| Euphorbia lasiocarpa Klotzsch | 18 images |
| Euphorbia lathyris L. | 9741 images |
| Euphorbia maculata L. | 979 images |
| Euphorbia marginata Pursh | 1622 images |
| Euphorbia mesembryanthemifolia Jacq. | 25 images |
| Euphorbia nutans Lag. | 424 images |
| Euphorbia ophthalmica Pers. | 11 images |
| Euphorbia peplus L. | 7489 images |
| Euphorbia platyphyllos L. | 601 images |
| Euphorbia polygonifolia L. | 43 images |
| Euphorbia prostrata Aiton | 2313 images |
| Euphorbia pubentissima Michx. | 10 images |
| Euphorbia serpens Kunth | 608 images |
| Euphorbia thymifolia L. | 67 images |
| Euphorbia tithymaloides L. | 2417 images |
| Euphorbia virgata Waldst. & Kit. | 33 images |
| Euploca convolvulacea Nutt. | 4 images |
| Euploca polyphylla (Lehm.) J.I.M.Melo & Semir | 44 images |
| Euploca procumbens (Mill.) Diane & Hilger | 31 images |
| Euploca tenella (Torr.) Feuillet & Halse | 41 images |
| Eurybia divaricata (L.) G.L.Nesom | 636 images |
| Eurybia hemispherica (Alexander) G.L.Nesom | 3 images |
| Eurybia macrophylla (L.) Cass. | 1739 images |
| Eurybia radula (Aiton) G.L.Nesom | 3 images |
| Eurybia schreberi (Nees) Nees | 24 images |
| Eustachys caribaea (Spreng.) Herter | 1 images |
| Eustachys distichophylla (Lag.) Nees | 1 images |
| Eustachys glauca Chapm. | 1 images |
| Eustachys petraea (Sw.) Desv. | 3 images |
| Eustachys retusa (Lag.) Kunth | 5 images |
| Eustoma exaltatum (L.) Salisb. ex G.Don | 76 images |
| Eustoma russellianum (Hook.) G.Don | 1981 images |
| Euthamia caroliniana (L.) Greene ex Porter & Britton | 1 images |
| Euthamia graminifolia (L.) Nutt. | 871 images |
| Euthamia gymnospermoides Greene | 17 images |
| Euthamia leptocephala (Torr. & A.Gray) Greene ex Porter & Britton | 1 images |
| Euthamia scabra Greene | 1 images |
| Eutrochium dubium (Willd. ex Poir.) E.E.Lamont | 1 images |
| Eutrochium fistulosum (Barratt) E.E.Lamont | 509 images |
| Eutrochium maculatum (L.) E.E.Lamont | 1755 images |
| Eutrochium purpureum (L.) E.E.Lamont | 298 images |
| Eutrochium steelei (E.E.Lamont) E.E.Lamont | 1 images |
| Evolvulus alsinoides (L.) L. | 800 images |
| Evolvulus convolvuloides (Willd. ex Schult.) Stearn | 18 images |
| Evolvulus filipes Mart. | 5 images |
| Evolvulus sericeus Sw. | 75 images |
| Exochorda racemosa (Fortune ex Lindl.) Rehder | 16 images |
| Exostema caribaeum (Jacq.) Schult. | 45 images |
| Exothea paniculata (Juss.) Radlk. | 2 images |
| Facelis retusa (Lam.) Sch.Bip. | 20 images |
| Fagopyrum esculentum Moench | 6662 images |
| Fagus grandifolia Ehrh. | 2641 images |
| Falcaria vulgaris Bernh. | 1128 images |
| Fallopia baldschuanica (Regel) Holub | 1458 images |
| Fallopia convolvulus (L.) Á.Löve | 1669 images |
| Fallopia dumetorum (L.) Holub | 1111 images |
| Fallopia scandens (L.) Holub | 28 images |
| Fatoua villosa (Thunb.) Nakai | 383 images |
| Festuca bromoides L. | 217 images |
| Festuca filiformis Pourr. | 187 images |
| Festuca heterophylla Lam. | 195 images |
| Festuca myuros L. | 350 images |
| Festuca octoflora Walter | 10 images |
| Festuca ovina L. | 261 images |
| Festuca rubra L. | 418 images |
| Festuca trachyphylla (Hack.) Hack. | 20 images |
| Ficus americana Aubl. | 151 images |
| Ficus aurea Nutt. | 222 images |
| Ficus benghalensis L. | 1395 images |
| Ficus benjamina L. | 7250 images |
| Ficus carica L. | 16640 images |
| Ficus citrifolia Mill. | 232 images |
| Ficus elastica Roxb. ex Hornem. | 7252 images |
| Ficus microcarpa L.f. | 4650 images |
| Ficus pumila L. | 2329 images |
| Ficus religiosa L. | 1208 images |
| Filago germanica (L.) Huds. | 241 images |
| Filipendula rubra (Hill) B.L.Rob. | 363 images |
| Fimbristylis autumnalis (L.) Roem. & Schult. | 287 images |
| Fimbristylis cymosa R.Br. | 37 images |
| Fimbristylis dichotoma (L.) Vahl | 83 images |
| Fimbristylis littoralis Gaudich. | 49 images |
| Fimbristylis quinquangularis (Vahl) Kunth | 3 images |
| Fimbristylis schoenoides (Retz.) Vahl | 5 images |
| Fimbristylis vahlii (Lam.) Link | 21 images |
| Firmiana simplex (L.) W.Wight | 880 images |
| Flaveria bidentis (L.) Kuntze | 31 images |
| Flaveria linearis Lag. | 16 images |
| Flaveria trinervia (Spreng.) C.Mohr | 78 images |
| Fleischmannia incarnata (Walter) R.M.King & H.Rob. | 15 images |
| Floerkea proserpinacoides Willd. | 46 images |
| Flueggea virosa (Roxb. ex Willd.) Royle | 229 images |
| Foeniculum vulgare Mill. | 12281 images |
| Forestiera acuminata (Michx.) Poir. | 18 images |
| Forestiera ligustrina (Michx.) Poir. | 20 images |
| Forestiera segregata (Jacq.) Krug & Urb. | 1 images |
| Forsythia suspensa (Thunb.) Vahl | 5151 images |
| Forsythia viridissima Lindl. | 3529 images |
| Fothergilla gardenii L. | 286 images |
| Fothergilla latifolia J.F.Mill. | 272 images |
| Fragaria vesca L. | 12289 images |
| Fragaria virginiana Mill. | 468 images |
| Frangula alnus Mill. | 7048 images |
| Frangula caroliniana (Walter) A.Gray | 128 images |
| Franklinia alatamaha Marshall | 78 images |
| Frasera caroliniensis Walter | 58 images |
| Fraxinus americana L. | 5498 images |
| Fraxinus berlandieriana A.DC. | 1 images |
| Fraxinus caroliniana Mill. | 24 images |
| Fraxinus excelsior L. | 26585 images |
| Fraxinus nigra Marshall | 30 images |
| Fraxinus pennsylvanica Marshall | 2059 images |
| Fraxinus profunda (Bush) Bush | 23 images |
| Fraxinus quadrangulata Michx. | 46 images |
| Freesia laxa (Thunb.) Goldblatt & J.C.Manning | 210 images |
| Froelichia floridana (Nutt.) Moq. | 60 images |
| Froelichia gracilis (Hook.) Moq. | 35 images |
| Fuirena coerulescens Steud. | 2 images |
| Fuirena pumila (Torr.) Spreng. | 1 images |
| Fuirena simplex Vahl | 8 images |
| Fuirena squarrosa Michx. | 1 images |
| Fuirena umbellata Rottb. | 35 images |
| Fumaria capreolata L. | 4166 images |
| Fumaria officinalis L. | 7835 images |
| Fumaria vaillantii Loisel. | 291 images |
| Funastrum clausum (Jacq.) Schltr. | 57 images |
| Funastrum cynanchoides (Decne.) Schltr. | 38 images |
| Furcraea foetida (L.) Haw. | 962 images |
| Furcraea selloana K.Koch | 265 images |
| Gaillardia aestivalis (Walter) H.Rock | 20 images |
| Gaillardia pulchella Foug. | 3638 images |
| Galactia elliottii Nutt. | 21 images |
| Galactia erecta (Walter) Vail | 1 images |
| Galactia floridana Torr. & A.Gray | 2 images |
| Galactia purshii Desv. | 1 images |
| Galactia striata (Jacq.) Urb. | 32 images |
| Galactia volubilis (L.) Britton | 5 images |
| Galanthus nivalis L. | 5287 images |
| Galanthus plicatus M.Bieb. | 2161 images |
| Galax urceolata (Poir.) Brummitt | 136 images |
| Galearis spectabilis (L.) Raf. | 163 images |
| Galeopsis bifida Boenn. | 727 images |
| Galeopsis tetrahit L. | 10161 images |
| Galinsoga parviflora Cav. | 3703 images |
| Galinsoga quadriradiata Ruiz & Pav. | 4684 images |
| Galium aparine L. | 13660 images |
| Galium asprellum Michx. | 16 images |
| Galium boreale L. | 1104 images |
| Galium circaezans Michx. | 81 images |
| Galium divaricatum Pourr. ex Lam. | 23 images |
| Galium mollugo L. | 10046 images |
| Galium obtusum Bigelow | 8 images |
| Galium palustre L. | 1942 images |
| Galium parisiense L. | 199 images |
| Galium pilosum Aiton | 9 images |
| Galium tinctorium L. | 1 images |
| Galium triflorum Michx. | 259 images |
| Galium verum L. | 11772 images |
| Galium virgatum Nutt. | 10 images |
| Galphimia gracilis Bartl. | 34 images |
| Gamochaeta americana (Mill.) Wedd. | 335 images |
| Gamochaeta antillana (Urb.) Anderb. | 39 images |
| Gamochaeta calviceps (Fernald) Cabrera | 1 images |
| Gamochaeta pensylvanica (Willd.) Cabrera | 89 images |
| Gamochaeta purpurea (L.) Cabrera | 113 images |
| Garberia heterophylla (W.Bartram) Merr. & F.Harper | 1 images |
| Gastridium phleoides (Nees & Meyen) C.E.Hubb. | 1 images |
| Gaudinia fragilis (L.) P.Beauv. | 162 images |
| Gaultheria hispidula (L.) Muhl. ex Bigelow | 82 images |
| Gaultheria procumbens L. | 1406 images |
| Gaylussacia baccata (Wangenh.) K.Koch | 71 images |
| Gaylussacia bigeloviana (Fernald) Sorrie & Weakley | 3 images |
| Gaylussacia brachycera (Michx.) Torr. & A.Gray | 2 images |
| Gelsemium rankinii Small | 7 images |
| Gelsemium sempervirens (L.) J.St.-Hil. | 297 images |
| Gentiana alba Muhl. ex J.McNab | 10 images |
| Gentiana andrewsii Griseb. | 161 images |
| Gentiana autumnalis L. | 4 images |
| Gentiana clausa Raf. | 39 images |
| Gentiana linearis Froel. | 104 images |
| Gentiana puberulenta J.S.Pringle | 2 images |
| Gentiana saponaria L. | 8 images |
| Gentiana villosa L. | 16 images |
| Gentianella quinquefolia (L.) Small | 22 images |
| Gentianopsis crinita (Froel.) Ma | 64 images |
| Geobalanus oblongifolius (Michx.) Small | 7 images |
| Geranium bicknellii Britton | 35 images |
| Geranium carolinianum L. | 1382 images |
| Geranium columbinum L. | 1497 images |
| Geranium dissectum L. | 6477 images |
| Geranium maculatum L. | 1506 images |
| Geranium molle L. | 9064 images |
| Geranium pusillum L. | 9428 images |
| Geranium robertianum L. | 24388 images |
| Geranium rotundifolium L. | 4890 images |
| Geranium sibiricum L. | 618 images |
| Geranium thunbergii Siebold & Zucc. | 20 images |
| Geum aleppicum Jacq. | 287 images |
| Geum canadense Jacq. | 118 images |
| Geum laciniatum Murray | 691 images |
| Geum radiatum Michx. | 3 images |
| Geum vernum (Raf.) Torr. & A.Gray | 2 images |
| Geum virginianum L. | 13 images |
| Gibasis pellucida (M.Martens & Galeotti) D.R.Hunt | 23 images |
| Gillenia stipulata (Muhl. ex Willd.) Nutt. | 6 images |
| Gillenia trifoliata (L.) Moench | 156 images |
| Gisekia pharnaceoides L. | 25 images |
| Gladiolus communis L. | 3779 images |
| Gladiolus dalenii Van Geel | 622 images |
| Glaucium flavum Crantz | 5946 images |
| Glebionis coronaria (L.) Cass. ex Spach | 6121 images |
| Glebionis segetum (L.) Fourr. | 5245 images |
| Glechoma hederacea L. | 27267 images |
| Gleditsia aquatica Marshall | 75 images |
| Gleditsia triacanthos L. | 12609 images |
| Glinus lotoides L. | 132 images |
| Glinus radiatus (Ruiz & Pav.) Rohrb. | 1 images |
| Gliricidia sepium (Jacq.) Kunth | 231 images |
| Gloriosa superba L. | 1226 images |
| Glyceria canadensis (Michx.) Trin. | 17 images |
| Glyceria declinata Bréb. | 31 images |
| Glyceria fluitans (L.) R.Br. | 230 images |
| Glyceria grandis S.Watson | 1 images |
| Glyceria obtusa (Muhl.) Trin. | 1 images |
| Glyceria septentrionalis Hitchc. | 2 images |
| Glyceria striata (Lam.) Hitchc. | 49 images |
| Glycine max (L.) Merr. | 2584 images |
| Glycosmis parviflora (Sims) Little | 19 images |
| Glycyrrhiza lepidota Pursh | 87 images |
| Gmelina arborea Roxb. ex Sm. | 25 images |
| Gnaphalium uliginosum L. | 1301 images |
| Gomphrena globosa L. | 3285 images |
| Gomphrena serrata L. | 411 images |
| Gomphrena vermicularis L. | 88 images |
| Gonolobus suberosus (L.) R.Br. | 3 images |
| Goodyera pubescens (Willd.) R.Br. | 347 images |
| Goodyera repens (L.) R.Br. | 401 images |
| Goodyera tesselata G.Lodd. | 32 images |
| Gossypium hirsutum L. | 620 images |
| Gouania lupuloides (L.) Urb. | 40 images |
| Gouania polygama (Jacq.) Urb. | 86 images |
| Graptophyllum pictum (L.) Griff. | 677 images |
| Gratiola hispida (Benth.) Pollard | 5 images |
| Gratiola lutea Raf. | 10 images |
| Gratiola neglecta Torr. | 21 images |
| Gratiola virginiana L. | 9 images |
| Grevillea robusta A.Cunn. ex R.Br. | 3344 images |
| Grindelia ciliata (Nutt.) Spreng. | 11 images |
| Grindelia lanceolata Nutt. | 42 images |
| Grindelia squarrosa (Pursh) Dunal | 373 images |
| Grona triflora (L.) H.Ohashi & K.Ohashi | 432 images |
| Guaiacum officinale L. | 336 images |
| Guaiacum sanctum L. | 179 images |
| Guapira discolor (Spreng.) Little | 6 images |
| Guapira obtusata (Jacq.) Little | 1 images |
| Guettarda elliptica Sw. | 5 images |
| Guettarda scabra (L.) Vent. | 55 images |
| Guilandina bonduc L. | 354 images |
| Guilandina major (Medik.) Small | 1 images |
| Guilleminea densa (Willd. ex Schult.) Moq. | 44 images |
| Guilleminea lanuginosa (Poir.) Benth. & Hook.f. | 3 images |
| Guizotia abyssinica (L.f.) Cass. | 1082 images |
| Gutierrezia texana (DC.) Torr. & A.Gray | 3 images |
| Guzmania monostachia (L.) Rusby ex Mez | 298 images |
| Gymnanthes lucida Sw. | 13 images |
| Gymnocarpium dryopteris (L.) Newman | 767 images |
| Gymnocladus dioicus (L.) K.Koch | 687 images |
| Gynura aurantiaca (Blume) DC. | 179 images |
| Gypsophila elegans M.Bieb. | 1339 images |
| Gypsophila oldhamiana Miq. | 11 images |
| Gypsophila paniculata L. | 1460 images |
| Gypsophila pilosa Huds. | 41 images |
| Gypsophila vaccaria (L.) Sm. | 1599 images |
| Habenaria quinqueseta (Michx.) Eaton | 3 images |
| Habenaria repens Nutt. | 15 images |
| Hackelia virginiana (L.) I.M.Johnst. | 180 images |
| Hackelochloa granularis (L.) Kuntze | 9 images |
| Halerpestes cymbalaria (Pursh) Greene | 19 images |
| Halesia carolina L. | 545 images |
| Halesia diptera L. | 45 images |
| Halodule wrightii Asch. | 3 images |
| Halophila decipiens Ostenf. | 3 images |
| Halophila ovalis (R.Br.) Hook.f. | 4 images |
| Hamamelis vernalis Sarg. | 23 images |
| Hamamelis virginiana L. | 3353 images |
| Hamelia patens Jacq. | 1243 images |
| Harperella nodosa (Rose) Rose | 5 images |
| Harperocallis flava McDaniel | 1 images |
| Harpullia arborea (Blanco) Radlk. | 58 images |
| Harrisia aboriginum Small ex Britton & Rose | 1 images |
| Harrisia fragrans Small ex Britton & Rose | 2 images |
| Hasteola suaveolens (L.) Pojark. | 32 images |
| Hedeoma acinoides Scheele | 5 images |
| Hedeoma drummondii Benth. | 7 images |
| Hedeoma hispida Pursh | 4 images |
| Hedeoma pulegioides (L.) Pers. | 24 images |
| Hedera canariensis Willd. | 2447 images |
| Hedera helix L. | 25128 images |
| Hedera hibernica Poit. | 169 images |
| Hedychium coronarium J.Koenig | 1437 images |
| Helanthium tenellum (Mart. ex Schult.f.) J.G.Sm. | 3 images |
| Helenium amarum (Raf.) H.Rock | 429 images |
| Helenium autumnale L. | 1874 images |
| Helenium brevifolium (Nutt.) Alph.Wood | 2 images |
| Helenium drummondii H.Rock | 5 images |
| Helenium elegans DC. | 11 images |
| Helenium flexuosum Raf. | 73 images |
| Helenium pinnatifidum (Schwein. ex Nutt.) Rydb. | 10 images |
| Helianthus × laetiflorus Pers. | 2426 images |
| Helianthus agrestis Pollard | 2 images |
| Helianthus angustifolius L. | 155 images |
| Helianthus annuus L. | 16318 images |
| Helianthus argophyllus Torr. & A.Gray | 4 images |
| Helianthus atrorubens L. | 20 images |
| Helianthus debilis Nutt. | 561 images |
| Helianthus decapetalus L. | 391 images |
| Helianthus divaricatus L. | 1308 images |
| Helianthus giganteus L. | 1531 images |
| Helianthus grosseserratus M.Martens | 57 images |
| Helianthus heterophyllus Nutt. | 7 images |
| Helianthus hirsutus Raf. | 84 images |
| Helianthus maximiliani Schrad. | 556 images |
| Helianthus microcephalus Torr. & A.Gray | 5 images |
| Helianthus mollis Buc'hoz | 111 images |
| Helianthus occidentalis Riddell | 43 images |
| Helianthus pauciflorus Nutt. | 202 images |
| Helianthus petiolaris Nutt. | 804 images |
| Helianthus porteri (A.Gray) Pruski | 1 images |
| Helianthus radula (Pursh) Torr. & A.Gray | 3 images |
| Helianthus silphioides Nutt. | 19 images |
| Helianthus strumosus L. | 86 images |
| Helianthus tuberosus L. | 8746 images |
| Heliconia latispatha Benth. | 443 images |
| Heliopsis gracilis Nutt. | 1 images |
| Heliopsis helianthoides (L.) Sweet | 2912 images |
| Heliotropium amplexicaule Vahl | 387 images |
| Heliotropium angiospermum Murray | 198 images |
| Heliotropium curassavicum L. | 718 images |
| Heliotropium europaeum L. | 5715 images |
| Heliotropium indicum L. | 670 images |
| Heliotropium verdcourtii Craven | 67 images |
| Helleborus viridis L. | 5518 images |
| Helminthotheca echioides (L.) Holub | 8602 images |
| Helonias bullata L. | 33 images |
| Helosciadium nodiflorum (L.) W.D.J.Koch | 1688 images |
| Hemarthria altissima (Poir.) Stapf & C.E.Hubb. | 18 images |
| Hemerocallis fulva (L.) L. | 11509 images |
| Hemerocallis lilioasphodelus L. | 6592 images |
| Hemionitis alabamensis (Buckley) Christenh. | 1 images |
| Hemionitis artax Christenh. | 1 images |
| Hemionitis atropurpurea (L.) Christenh. | 50 images |
| Hemionitis bradburyi (Hook.) Christenh. | 3 images |
| Hemionitis eatonii (Baker) Christenh. | 3 images |
| Hemionitis feei (T.Moore) Christenh. | 3 images |
| Hemionitis glabella (Mett.) Christenh. | 13 images |
| Hemionitis integerrima (Hook.) Christenh. | 1 images |
| Hemionitis lanosa (Michx.) Christenh. | 19 images |
| Hemionitis microphylla (Sw.) Christenh. | 2 images |
| Hemionitis sinuata (Lag.) Christenh. | 17 images |
| Hemionitis wrightiana (Hook.) Christenh. | 2 images |
| Hepatica acutiloba DC. | 14 images |
| Hepatica americana (DC.) Ker Gawl. | 7 images |
| Heptapleurum actinophyllum (Endl.) Lowry & G.M.Plunkett | 4651 images |
| Heptapleurum arboricola Hayata | 7940 images |
| Heracleum mantegazzianum Sommier & Levier | 3184 images |
| Heracleum maximum W.Bartram | 777 images |
| Heracleum sibiricum L. | 4049 images |
| Herbertia lahue (Molina) Goldblatt | 159 images |
| Herissantia crispa (L.) Brizicky | 46 images |
| Hermbstaedtia odorata (Burch.) T.Cooke | 4 images |
| Herniaria cinerea DC. | 31 images |
| Herniaria glabra L. | 825 images |
| Hesperis matronalis L. | 8907 images |
| Heteranthera dubia (Jacq.) MacMill. | 24 images |
| Heteranthera limosa (Sw.) Willd. | 49 images |
| Heteranthera reniformis Ruiz & Pav. | 125 images |
| Heteropogon contortus (L.) P.Beauv. ex Roem. & Schult. | 217 images |
| Heteropogon melanocarpus (Elliott) Benth. | 1 images |
| Heteropterys brachiata (L.) DC. | 26 images |
| Heterosperma pinnatum Cav. | 7 images |
| Heterotheca camporum (Greene) Shinners | 32 images |
| Heterotheca subaxillaris (Lam.) Britton & Rusby | 336 images |
| Heuchera americana L. | 391 images |
| Heuchera longiflora Rydb. | 4 images |
| Heuchera pubescens Pursh | 5 images |
| Heuchera villosa Michx. | 295 images |
| Hexasepalum teres (Walter) J.H.Kirkbr. | 125 images |
| Hibiscus acetosella Welw. ex Hiern | 741 images |
| Hibiscus aculeatus Walter | 46 images |
| Hibiscus bifurcatus Cav. | 5 images |
| Hibiscus coccineus Walter | 564 images |
| Hibiscus furcellatus Desr. | 10 images |
| Hibiscus grandiflorus Michx. | 93 images |
| Hibiscus laevis All. | 128 images |
| Hibiscus moscheutos L. | 6118 images |
| Hibiscus mutabilis L. | 1544 images |
| Hibiscus poeppigii (Spreng.) Garcke | 9 images |
| Hibiscus radiatus Cav. | 11 images |
| Hibiscus rosa-sinensis L. | 22189 images |
| Hibiscus schizopetalus (Mast.) Hook.f. | 127 images |
| Hibiscus syriacus L. | 29443 images |
| Hibiscus tiliaceus L. | 1708 images |
| Hibiscus trionum L. | 1255 images |
| Hieracium lachenalii Suter | 627 images |
| Hieracium megacephalon Nash | 1 images |
| Hieracium paniculatum L. | 17 images |
| Hieracium scabrum Michx. | 20 images |
| Hieracium venosum L. | 166 images |
| Hippeastrum puniceum (Lam.) Voss | 795 images |
| Hippobroma longiflora (L.) G.Don | 976 images |
| Hippocratea volubilis L. | 82 images |
| Hippomane mancinella L. | 208 images |
| Hiptage benghalensis (L.) Kurz | 166 images |
| Holcus lanatus L. | 6670 images |
| Holcus mollis L. | 220 images |
| Holosteum umbellatum L. | 149 images |
| Homalosorus pycnocarpos (Spreng.) Pic.Serm. | 4 images |
| Honckenya peploides (L.) Ehrh. | 1552 images |
| Hopia obtusa (Kunth) Zuloaga & Morrone | 1 images |
| Hordeum brachyantherum Nevski | 21 images |
| Hordeum jubatum L. | 572 images |
| Hordeum murinum L. | 7579 images |
| Hordeum pusillum Nutt. | 57 images |
| Hordeum vulgare L. | 9035 images |
| Hosta ventricosa Stearn | 86 images |
| Hottonia inflata Elliott | 5 images |
| Houstonia caerulea L. | 554 images |
| Houstonia longifolia Gaertn. | 49 images |
| Houstonia micrantha (Shinners) Terrell | 42 images |
| Houstonia procumbens (Walter ex J.F.Gmel.) Standl. | 3 images |
| Houstonia purpurea L. | 126 images |
| Houstonia pusilla Schoepf | 259 images |
| Houstonia rosea (Raf.) Terrell | 10 images |
| Houstonia serpyllifolia Michx. | 47 images |
| Houttuynia cordata Thunb. | 2469 images |
| Hovenia dulcis Thunb. | 292 images |
| Hudsonia ericoides L. | 10 images |
| Hudsonia tomentosa Nutt. | 22 images |
| Humulus lupulus L. | 11081 images |
| Humulus scandens (Lour.) Merr. | 95 images |
| Huperzia dichotoma (Jacq.) Trevis. | 2 images |
| Hura crepitans L. | 536 images |
| Hyacinthoides hispanica (Mill.) Rothm. | 5069 images |
| Hyacinthoides non-scripta (L.) Chouard ex Rothm. | 10662 images |
| Hybanthus concolor (T.F.Forst.) Spreng. | 1 images |
| Hydrangea arborescens L. | 6247 images |
| Hydrangea barbara (L.) Bernd Schulz | 47 images |
| Hydrangea cinerea Small | 29 images |
| Hydrangea paniculata Siebold | 8000 images |
| Hydrangea quercifolia W.Bartram | 2410 images |
| Hydrastis canadensis L. | 166 images |
| Hydrilla verticillata (L.f.) Royle | 6 images |
| Hydrocleys nymphoides (Humb. & Bonpl. ex Willd.) Buchenau | 51 images |
| Hydrocotyle americana L. | 53 images |
| Hydrocotyle bonariensis Comm. ex Lam. | 216 images |
| Hydrocotyle bowlesioides Mathias & Constance | 11 images |
| Hydrocotyle ranunculoides L.f. | 257 images |
| Hydrocotyle sibthorpioides Lam. | 1190 images |
| Hydrocotyle umbellata L. | 63 images |
| Hydrocotyle verticillata Thunb. | 706 images |
| Hydrolea corymbosa Elliott | 5 images |
| Hydrolea ovata Nutt. | 62 images |
| Hydrolea quadrivalvis Walter | 6 images |
| Hydrophyllum appendiculatum Michx. | 166 images |
| Hydrophyllum canadense L. | 24 images |
| Hydrophyllum macrophyllum Nutt. | 28 images |
| Hydrophyllum virginianum L. | 871 images |
| Hygrophila corymbosa (Blume) Lindau | 34 images |
| Hygrophila costata Nees | 48 images |
| Hygrophila difformis (L.f.) Blume | 4 images |
| Hygrophila polysperma (Roxb.) T.Anderson | 52 images |
| Hylodesmum glutinosum (Muhl. ex Willd.) H.Ohashi & R.R.Mill | 103 images |
| Hylodesmum nudiflorum (L.) H.Ohashi & R.R.Mill | 8 images |
| Hylotelephium erythrostictum (Miq.) H.Ohba | 28 images |
| Hylotelephium telephioides (Michx.) H.Ohba | 174 images |
| Hylotelephium telephium (L.) H.Ohba | 8886 images |
| Hymenachne amplexicaulis (Rudge) Nees | 42 images |
| Hymenocallis coronaria (Leconte) Kunth | 13 images |
| Hymenocallis latifolia (Mill.) M.Roem. | 12 images |
| Hymenocallis liriosme (Raf.) Shinners | 217 images |
| Hymenocallis occidentalis (Leconte) Kunth | 13 images |
| Hymenocallis palmeri S.Watson | 15 images |
| Hymenocallis rotata (Ker Gawl.) Herb. | 5 images |
| Hymenopappus artemisiifolius DC. | 67 images |
| Hymenopappus scabiosaeus L'Hér. | 9 images |
| Hymenophyllum tunbrigense (L.) Sm. | 127 images |
| Hyparrhenia hirta (L.) Stapf | 1101 images |
| Hyparrhenia rufa (Nees) Stapf | 38 images |
| Hypelate trifoliata Sw. | 2 images |
| Hypericum androsaemum L. | 7974 images |
| Hypericum ascyron L. | 35 images |
| Hypericum canadense L. | 10 images |
| Hypericum cistifolium Lam. | 9 images |
| Hypericum crux-andreae (L.) Crantz | 6 images |
| Hypericum densiflorum Pursh | 19 images |
| Hypericum denticulatum Walter | 1 images |
| Hypericum ellipticum Hook. | 13 images |
| Hypericum fasciculatum Lam. | 28 images |
| Hypericum fraseri (Spach) Steud. | 48 images |
| Hypericum frondosum Michx. | 95 images |
| Hypericum gentianoides (L.) Britton, Sterns & Poggenb. | 37 images |
| Hypericum hypericoides (L.) Crantz | 298 images |
| Hypericum kalmianum L. | 206 images |
| Hypericum majus (A.Gray) Britton | 6 images |
| Hypericum mutilum L. | 121 images |
| Hypericum myrtifolium Lam. | 6 images |
| Hypericum perforatum L. | 17872 images |
| Hypericum prolificum L. | 239 images |
| Hypericum punctatum Lam. | 279 images |
| Hypericum sphaerocarpum Michx. | 12 images |
| Hypericum tetrapetalum Lam. | 42 images |
| Hypericum virginicum L. | 26 images |
| Hypochaeris albiflora (Kuntze) Azevêdo-Gonç. & Matzenb. | 55 images |
| Hypochaeris chillensis (Kunth) Britton | 16 images |
| Hypochaeris glabra L. | 3106 images |
| Hypochaeris radicata L. | 10660 images |
| Hypolepis repens (L.) C.Presl | 7 images |
| Hypoxis hirsuta (L.) Coville | 328 images |
| Hypoxis juncea Sm. | 12 images |
| Hyptis alata (Raf.) Shinners | 18 images |
| Hyptis brevipes Poit. | 51 images |
| Hyptis capitata Jacq. | 108 images |
| Ibicella lutea (Lindl.) Van Eselt. | 170 images |
| Ilex ambigua (Michx.) Torr. | 4 images |
| Ilex aquifolium L. | 17821 images |
| Ilex cassine L. | 143 images |
| Ilex collina Alexander | 7 images |
| Ilex coriacea (Pursh) Chapm. | 20 images |
| Ilex cornuta Lindl. & Paxton | 1014 images |
| Ilex crenata Thunb. | 705 images |
| Ilex decidua Walter | 362 images |
| Ilex glabra (L.) A.Gray | 1 images |
| Ilex montana Torr. & A.Gray | 18 images |
| Ilex mucronata (L.) M.Powell, Savol. & S.Andrews | 140 images |
| Ilex myrtifolia Walter | 4 images |
| Ilex opaca Aiton | 1561 images |
| Ilex rotunda Thunb. | 64 images |
| Ilex verticillata (L.) A.Gray | 23 images |
| Ilex vomitoria Aiton | 871 images |
| Iliamna remota Greene | 1 images |
| Illicium floridanum J.Ellis | 10 images |
| Illicium parviflorum Michx. ex Vent. | 14 images |
| Impatiens balsamina L. | 2743 images |
| Impatiens capensis Meerb. | 2771 images |
| Impatiens pallida Nutt. | 1127 images |
| Impatiens walleriana Hook.f. | 5949 images |
| Imperata brasiliensis Trin. | 2 images |
| Imperata cylindrica (L.) Raeusch. | 749 images |
| Indigofera hirsuta L. | 226 images |
| Indigofera miniata Ortega | 81 images |
| Indigofera pilosa Poir. | 1 images |
| Indigofera spicata Forssk. | 230 images |
| Indigofera subulata Vahl ex Poir. | 1 images |
| Indigofera suffruticosa Mill. | 104 images |
| Indigofera tinctoria L. | 413 images |
| Inula helenium L. | 3130 images |
| Iodanthus pinnatifidus (Michx.) Steud. | 56 images |
| Ionactis linariifolia (L.) Greene | 26 images |
| Ionopsis utricularioides (Sw.) Lindl. | 93 images |
| Ipheion uniflorum (Graham) Raf. | 2714 images |
| Ipomoea alba L. | 704 images |
| Ipomoea amnicola Morong | 15 images |
| Ipomoea aquatica Forssk. | 396 images |
| Ipomoea asarifolia (Desr.) Roem. & Schult. | 178 images |
| Ipomoea batatas (L.) Lam. | 4620 images |
| Ipomoea cairica (L.) Sweet | 1708 images |
| Ipomoea carnea Jacq. | 1074 images |
| Ipomoea coccinea L. | 32 images |
| Ipomoea cordatotriloba Dennst. | 459 images |
| Ipomoea corymbosa (L.) Roth | 29 images |
| Ipomoea hederacea Jacq. | 702 images |
| Ipomoea hederifolia L. | 818 images |
| Ipomoea heptaphylla Sweet | 40 images |
| Ipomoea imperati (Vahl) Griseb. | 263 images |
| Ipomoea indica (Burm.) Merr. | 5305 images |
| Ipomoea lacunosa L. | 414 images |
| Ipomoea lobata (Cerv.) Thell. | 740 images |
| Ipomoea muricata (L.) Jacq. | 5 images |
| Ipomoea nil (L.) Roth | 587 images |
| Ipomoea pes-caprae (L.) R.Br. | 398 images |
| Ipomoea purpurea (L.) Roth | 8452 images |
| Ipomoea quamoclit L. | 814 images |
| Ipomoea sagittata Poir. | 182 images |
| Ipomoea setosa Ker Gawl. | 14 images |
| Ipomoea triloba L. | 346 images |
| Ipomoea violacea L. | 31 images |
| Ipomopsis rubra (L.) Wherry | 156 images |
| Iresine diffusa Humb. & Bonpl. ex Willd. | 3438 images |
| Iresine rhizomatosa Standl. | 2 images |
| Iris × germanica L. | 7933 images |
| Iris brevicaulis Raf. | 19 images |
| Iris cristata Aiton | 192 images |
| Iris domestica (L.) Goldblatt & Mabb. | 1105 images |
| Iris ensata Thunb. | 423 images |
| Iris fulva Ker Gawl. | 25 images |
| Iris giganticaerulea Small | 24 images |
| Iris hexagona Walter | 5 images |
| Iris pallida Lam. | 2616 images |
| Iris prismatica Pursh | 2 images |
| Iris pseudacorus L. | 10677 images |
| Iris tridentata Pursh | 2 images |
| Iris verna L. | 42 images |
| Iris versicolor L. | 939 images |
| Iris virginica L. | 146 images |
| Iris xiphium L. | 2237 images |
| Isatis tinctoria L. | 4065 images |
| Ischaemum rugosum Salisb. | 5 images |
| Isoetes lacustris L. | 28 images |
| Isolepis pseudosetacea (Daveau) Gand. | 6 images |
| Isotria medeoloides (Pursh) Raf. | 19 images |
| Isotria verticillata (Muhl. ex Willd.) Raf. | 1 images |
| Itea virginica L. | 144 images |
| Iva annua L. | 142 images |
| Iva asperifolia Less. | 6 images |
| Iva frutescens L. | 77 images |
| Iva imbricata Walter | 17 images |
| Ixeris stolonifera A.Gray | 6 images |
| Jaborosa integrifolia Lam. | 64 images |
| Jacquemontia curtissii Peter ex Hallier f. | 1 images |
| Jacquemontia havanensis (Jacq.) Urb. | 5 images |
| Jacquemontia pentanthos (Jacq.) G.Don | 207 images |
| Jacquemontia tamnifolia (L.) Griseb. | 184 images |
| Jacquinia keyensis Mez | 7 images |
| Jasione montana L. | 6520 images |
| Jasminum mesnyi Hance | 2328 images |
| Jasminum nudiflorum Lindl. | 5445 images |
| Jatropha curcas L. | 695 images |
| Jatropha gossypiifolia L. | 1050 images |
| Jatropha integerrima Jacq. | 2023 images |
| Jatropha multifida L. | 1040 images |
| Jeffersonia diphylla (L.) Pers. | 125 images |
| Juglans cinerea L. | 572 images |
| Juglans nigra L. | 8734 images |
| Juncus articulatus L. | 851 images |
| Juncus brachycarpus Engelm. | 1 images |
| Juncus brachycephalus (Engelm.) Buchenau | 3 images |
| Juncus bufonius L. | 561 images |
| Juncus canadensis J.Gay ex Laharpe | 2 images |
| Juncus compressus Jacq. | 248 images |
| Juncus dichotomus Elliott | 7 images |
| Juncus diffusissimus Buckley | 2 images |
| Juncus dudleyi Wiegand | 10 images |
| Juncus effusus L. | 4157 images |
| Juncus gerardi Loisel. | 121 images |
| Juncus inflexus L. | 960 images |
| Juncus interior Wiegand | 3 images |
| Juncus marginatus Rostk. | 6 images |
| Juncus nodosus L. | 3 images |
| Juncus roemerianus Scheele | 3 images |
| Juncus scirpoides Lam. | 3 images |
| Juncus tenuis Willd. | 767 images |
| Juncus torreyi Coville | 34 images |
| Juncus validus Coville | 2 images |
| Juniperus ashei J.Buchholz | 9 images |
| Juniperus communis L. | 9704 images |
| Juniperus rigida Siebold & Zucc. | 83 images |
| Juniperus virginiana L. | 4912 images |
| Justicia brandegeeana Wassh. & L.B.Sm. | 1824 images |
| Justicia lanceolata (Chapm.) Small | 4 images |
| Justicia spicigera Schltdl. | 283 images |
| Kalanchoe × houghtonii D.B.Ward | 677 images |
| Kalanchoe blossfeldiana Poelln. | 14334 images |
| Kalanchoe crenata (Andrews) Haw. | 3161 images |
| Kalanchoe daigremontiana Raym.-Hamet & H.Perrier | 2734 images |
| Kalanchoe delagoensis Eckl. & Zeyh. | 1958 images |
| Kalanchoe fedtschenkoi Raym.-Hamet & H.Perrier | 899 images |
| Kalanchoe gastonis-bonnieri Raym.-Hamet & H.Perrier | 3 images |
| Kalanchoe laciniata (L.) DC. | 528 images |
| Kalanchoe pinnata (Lam.) Pers. | 1797 images |
| Kallstroemia maxima (L.) Hook. & Arn. | 56 images |
| Kallstroemia parviflora Norton | 2 images |
| Kallstroemia pubescens (G.Don) Dandy | 20 images |
| Kalmia angustifolia L. | 518 images |
| Kalmia buxifolia (P.J.Bergius) Gift & Kron | 16 images |
| Kalmia hirsuta Walter | 6 images |
| Kalmia latifolia L. | 1886 images |
| Kerria japonica (L.) DC. | 7969 images |
| Khaya senegalensis (Desv.) A.Juss. | 225 images |
| Kickxia elatine (L.) Dumort. | 395 images |
| Kickxia spuria (L.) Dumort. | 932 images |
| Koeleria macrantha (Ledeb.) Schult. | 142 images |
| Koeleria spicata (L.) Barberá, Quintanar, Soreng & P.M.Peterson | 87 images |
| Koelreuteria bipinnata Franch. | 246 images |
| Koelreuteria elegans (Seem.) A.C.Sm. | 38 images |
| Koelreuteria paniculata Laxm. | 10393 images |
| Kolkwitzia amabilis Graebn. | 6385 images |
| Kosteletzkya depressa (L.) O.J.Blanch., Fryxell & D.M.Bates | 12 images |
| Kosteletzkya pentacarpos (L.) Ledeb. | 62 images |
| Krameria lanceolata Torr. | 46 images |
| Krigia biflora (Walter) S.F.Blake | 64 images |
| Krigia dandelion Nutt. | 59 images |
| Krigia montana Nutt. | 3 images |
| Krigia occidentalis Nutt. | 6 images |
| Krigia virginica (L.) Willd. | 84 images |
| Krugiodendron ferreum (Vahl) Urb. | 33 images |
| Kummerowia stipulacea (Maxim.) Makino | 6 images |
| Kummerowia striata (Thunb.) Schindl. | 186 images |
| Lachnagrostis filiformis (G.Forst.) Trin. | 1 images |
| Lachnanthes caroliniana (Lam.) Dandy | 20 images |
| Lactuca biennis (Moench) Fernald | 173 images |
| Lactuca canadensis L. | 500 images |
| Lactuca floridana (L.) Gaertn. | 699 images |
| Lactuca graminifolia Michx. | 16 images |
| Lactuca hirsuta Muhl. ex Nutt. | 25 images |
| Lactuca saligna L. | 463 images |
| Lactuca sativa L. | 5259 images |
| Lactuca serriola L. | 14082 images |
| Lactuca virosa L. | 3963 images |
| Lagenaria siceraria (Molina) Standl. | 984 images |
| Lagerstroemia indica L. | 17765 images |
| Laguncularia racemosa (L.) C.F.Gaertn. | 286 images |
| Lagurus ovatus L. | 3953 images |
| Lamium album L. | 8608 images |
| Lamium amplexicaule L. | 5401 images |
| Lamium galeobdolon (L.) L. | 14176 images |
| Lamium purpureum L. | 16554 images |
| Lantana × strigocamara R.W.Sanders | 23 images |
| Lantana canescens Kunth | 617 images |
| Lantana depressa Small | 15 images |
| Lantana involucrata L. | 204 images |
| Lantana montevidensis (Spreng.) Briq. | 2052 images |
| Laportea aestuans (L.) Chew | 823 images |
| Laportea canadensis (L.) Wedd. | 334 images |
| Lappula occidentalis (S.Watson) Greene | 6 images |
| Lappula squarrosa (Retz.) Dumort. | 257 images |
| Lapsana communis L. | 15593 images |
| Larix decidua Mill. | 7056 images |
| Larix laricina (Du Roi) K.Koch | 255 images |
| Lasiacis divaricata (L.) Hitchc. | 46 images |
| Lasiacis ruscifolia (Kunth) Hitchc. ex Chase | 25 images |
| Lathyrus aphaca L. | 654 images |
| Lathyrus hirsutus L. | 705 images |
| Lathyrus latifolius L. | 11080 images |
| Lathyrus oleraceus Lam. | 5440 images |
| Lathyrus palustris L. | 243 images |
| Lathyrus sylvestris L. | 3154 images |
| Lathyrus tuberosus L. | 2465 images |
| Lathyrus venosus Muhl. ex Willd. | 20 images |
| Launaea intybacea (Jacq.) Beauverd | 15 images |
| Leavenworthia exigua Rollins | 12 images |
| Leavenworthia stylosa A.Gray ex Chapm. | 24 images |
| Leavenworthia uniflora (Michx.) Britton | 3 images |
| Lechea minor L. | 2 images |
| Lechea mucronata Raf. | 10 images |
| Lechea racemulosa Michx. | 2 images |
| Leersia hexandra Sw. | 60 images |
| Leersia lenticularis Michx. | 1 images |
| Leersia oryzoides (L.) Sw. | 296 images |
| Leersia virginica Willd. | 60 images |
| Leitneria floridana Chapm. | 7 images |
| Lemna aequinoctialis Welw. | 67 images |
| Lemna gibba L. | 80 images |
| Lemna minor L. | 1091 images |
| Lemna minuta Kunth | 117 images |
| Lemna perpusilla Torr. | 1 images |
| Lemna trisulca L. | 125 images |
| Lemna turionifera Landolt | 22 images |
| Lemna valdiviana Phil. | 7 images |
| Leochilus labiatus (Sw.) Kuntze | 25 images |
| Leonotis nepetifolia (L.) R.Br. | 692 images |
| Leontodon hispidus L. | 3841 images |
| Leontodon saxatilis Lam. | 1555 images |
| Leonurus cardiaca L. | 4014 images |
| Leonurus japonicus Houtt. | 31 images |
| Leonurus sibiricus L. | 327 images |
| Lepidium austrinum Small | 10 images |
| Lepidium campestre (L.) W.T.Aiton | 51 images |
| Lepidium coronopus (L.) Al-Shehbaz | 162 images |
| Lepidium densiflorum Schrad. | 76 images |
| Lepidium didymum L. | 1677 images |
| Lepidium draba L. | 8300 images |
| Lepidium graminifolium L. | 675 images |
| Lepidium oblongum Small | 10 images |
| Lepidium perfoliatum L. | 46 images |
| Lepidium ruderale L. | 267 images |
| Lepidium sativum L. | 975 images |
| Lepidium virginicum L. | 2095 images |
| Leptochloa panicea (Retz.) Ohwi | 5 images |
| Leptochloa scabra Nees | 3 images |
| Leptospron adenanthum (G.Mey.) A.Delgado | 12 images |
| Lespedeza bicolor Turcz. | 576 images |
| Lespedeza capitata Michx. | 145 images |
| Lespedeza cuneata (Dum.Cours.) G.Don | 172 images |
| Lespedeza hirta (L.) Hornem. | 85 images |
| Lespedeza procumbens Michx. | 23 images |
| Lespedeza repens (L.) W.P.C.Barton | 1 images |
| Lespedeza stuevei Nutt. | 7 images |
| Lespedeza thunbergii (DC.) Nakai | 336 images |
| Lespedeza violacea Pers. | 35 images |
| Lespedeza virginica (L.) Britton | 147 images |
| Leucanthemum vulgare Lam. | 11282 images |
| Leucojum aestivum L. | 2264 images |
| Leucojum vernum L. | 3184 images |
| Leucospora multifida (Michx.) Nutt. | 32 images |
| Leucothoe axillaris (Lam.) D.Don | 163 images |
| Leucothoe fontanesiana (Steud.) Sleumer | 615 images |
| Leucothrinax morrisii (H.Wendl.) C.Lewis & Zona | 28 images |
| Leuzea repens (L.) D.J.N.Hind | 34 images |
| Liatris acidota Engelm. & Gray | 1 images |
| Liatris aspera Michx. | 240 images |
| Liatris chapmanii Torr. & A.Gray | 4 images |
| Liatris cylindracea Michx. | 38 images |
| Liatris elegans (Walter) Michx. | 21 images |
| Liatris elegantula K.Schum. | 5 images |
| Liatris gracilis Pursh | 12 images |
| Liatris microcephala K.Schum. | 1 images |
| Liatris punctata Hook. | 209 images |
| Liatris pycnostachya Michx. | 766 images |
| Liatris scariosa (L.) Willd. | 34 images |
| Liatris spicata (L.) Willd. | 2657 images |
| Liatris squarrosa (L.) Michx. | 74 images |
| Liatris squarrulosa Michx. | 9 images |
| Liatris tenuifolia Nutt. | 8 images |
| Licaria triandra (Sw.) Kosterm. | 6 images |
| Ligularia dentata (A.Gray) H.Hara | 6 images |
| Ligusticum canadense (L.) Britton | 16 images |
| Ligustrum japonicum Thunb. | 4058 images |
| Ligustrum lucidum W.T.Aiton | 10605 images |
| Ligustrum obtusifolium Siebold & Zucc. | 229 images |
| Ligustrum ovalifolium Hassk. | 6297 images |
| Ligustrum quihoui Carrière | 26 images |
| Ligustrum sinense Lour. | 5268 images |
| Ligustrum vulgare L. | 21036 images |
| Lilium canadense L. | 156 images |
| Lilium catesbaei Walter | 23 images |
| Lilium formosanum A.Wallace | 37 images |
| Lilium grayi S.Watson | 8 images |
| Lilium lancifolium Thunb. | 1992 images |
| Lilium longiflorum Thunb. | 718 images |
| Lilium michauxii Poir. | 27 images |
| Lilium michiganense Farw. | 90 images |
| Lilium philadelphicum L. | 121 images |
| Lilium regale E.H.Wilson | 540 images |
| Lilium superbum L. | 106 images |
| Limnophila indica (L.) Druce | 15 images |
| Limnophila sessiliflora (Vahl) Blume | 27 images |
| Limnosciadium pinnatum (DC.) Mathias & Constance | 14 images |
| Limonium carolinianum (Walter) Britton | 90 images |
| Limosella australis R.Br. | 7 images |
| Linaria bipartita (Vent.) Willd. | 1 images |
| Linaria dalmatica (L.) Mill. | 230 images |
| Linaria maroccana Hook.f. | 1965 images |
| Linaria vulgaris Mill. | 19111 images |
| Lindera benzoin (L.) Blume | 1011 images |
| Lindernia dubia (L.) Pennell | 245 images |
| Lindernia grandiflora Nutt. | 4 images |
| Linnaea borealis L. | 757 images |
| Linum grandiflorum Desf. | 3079 images |
| Linum imbricatum (Raf.) B.D.Jacks. | 1 images |
| Linum lewisii Pursh | 181 images |
| Linum medium (Planch.) Britton | 24 images |
| Linum rigidum Pursh | 18 images |
| Linum sulcatum Riddell | 4 images |
| Linum usitatissimum L. | 5978 images |
| Linum virginianum L. | 1 images |
| Lipandra polysperma (L.) S.Fuentes, Uotila & Borsch | 1300 images |
| Liparis liliifolia (L.) Rich. ex Lindl. | 12 images |
| Liparis loeselii (L.) Rich. | 198 images |
| Liparis nervosa (Thunb.) Lindl. | 24 images |
| Lippia alba (Mill.) N.E.Br. ex Britton & P.Wilson | 1275 images |
| Liquidambar styraciflua L. | 12865 images |
| Liriodendron tulipifera L. | 10953 images |
| Liriope muscari (Decne.) L.H.Bailey | 2214 images |
| Liriope spicata Lour. | 69 images |
| Lithachne pauciflora (Sw.) P.Beauv. | 26 images |
| Lithospermum canescens (Michx.) Lehm. | 153 images |
| Lithospermum incisum Lehm. | 141 images |
| Lithospermum latifolium Michx. | 9 images |
| Lithospermum molle (Michx.) Muhl. | 9 images |
| Lithospermum parviflorum Weakley, Witsell & D.Estes | 2 images |
| Litsea aestivalis (L.) Fernald | 2 images |
| Livistona chinensis (Jacq.) R.Br. ex Mart. | 1419 images |
| Lobelia cardinalis L. | 2264 images |
| Lobelia dortmanna L. | 174 images |
| Lobelia glandulosa Walter | 4 images |
| Lobelia inflata L. | 653 images |
| Lobelia nuttallii Schult. | 1 images |
| Lobelia paludosa Nutt. | 5 images |
| Lobelia puberula Michx. | 113 images |
| Lobelia siphilitica L. | 1436 images |
| Lobelia spicata Lam. | 134 images |
| Lobularia maritima (L.) Desv. | 14435 images |
| Loeflingia squarrosa Nutt. | 2 images |
| Lolium arundinaceum (Schreb.) Darbysh. | 953 images |
| Lolium multiflorum Lam. | 427 images |
| Lolium perenne L. | 3532 images |
| Lolium pratense (Huds.) Darbysh. | 813 images |
| Lolium rigidum Gaudin | 225 images |
| Lolium temulentum L. | 32 images |
| Lonicera canadensis J.Bartram & W.Bartram ex Marshall | 141 images |
| Lonicera dioica L. | 123 images |
| Lonicera flava Sims | 41 images |
| Lonicera fragrantissima Lindl. & Paxton | 2217 images |
| Lonicera japonica Thunb. | 11189 images |
| Lonicera maackii (Rupr.) Maxim. | 2735 images |
| Lonicera reticulata Raf. | 23 images |
| Lonicera sempervirens L. | 1662 images |
| Lonicera tatarica L. | 5729 images |
| Lonicera xylosteum L. | 11057 images |
| Lotus corniculatus L. | 20229 images |
| Lotus tenuis Waldst. & Kit. ex Willd. | 5054 images |
| Ludwigia alternifolia L. | 223 images |
| Ludwigia arcuata Walter | 6 images |
| Ludwigia bonariensis (Micheli) H.Hara | 15 images |
| Ludwigia curtissii Chapm. | 1 images |
| Ludwigia decurrens Walter | 49 images |
| Ludwigia erecta (L.) H.Hara | 114 images |
| Ludwigia glandulosa Walter | 4 images |
| Ludwigia grandiflora (Michx.) Greuter & Burdet | 1376 images |
| Ludwigia leptocarpa (Nutt.) H.Hara | 7 images |
| Ludwigia linearis Walter | 9 images |
| Ludwigia linifolia Poir. | 1 images |
| Ludwigia longifolia (DC.) H.Hara | 21 images |
| Ludwigia octovalvis (Jacq.) P.H.Raven | 855 images |
| Ludwigia palustris (L.) Elliott | 322 images |
| Ludwigia peploides (Kunth) P.H.Raven | 811 images |
| Ludwigia peruviana (L.) H.Hara | 120 images |
| Ludwigia repens J.R.Forst. | 9 images |
| Ludwigia sphaerocarpa Elliott | 1 images |
| Ludwigia suffruticosa Walter | 4 images |
| Ludwigia virgata Michx. | 1 images |
| Luffa acutangula (L.) Roxb. | 257 images |
| Luffa aegyptiaca Mill. | 81 images |
| Luffa quinquefida (Hook. & Arn.) Seem. | 1 images |
| Lumnitzera racemosa Willd. | 67 images |
| Lunaria annua L. | 21357 images |
| Lunaria rediviva L. | 3977 images |
| Lupinus angustifolius L. | 3360 images |
| Lupinus diffusus Nutt. | 41 images |
| Lupinus perennis L. | 1074 images |
| Lupinus subcarnosus Hook. | 27 images |
| Lupinus texensis Hook. | 390 images |
| Lupinus villosus Willd. | 5 images |
| Luzula acuminata Raf. | 15 images |
| Luzula multiflora (Ehrh.) Lej. | 382 images |
| Lycium barbarum L. | 3345 images |
| Lycium carolinianum Walter | 2 images |
| Lycopodiella appressa (Chapm.) Cranfill | 3 images |
| Lycopodiella cernua (L.) Pic.Serm. | 231 images |
| Lycopodiella inundata (L.) Holub | 161 images |
| Lycopodium annotinum L. | 1090 images |
| Lycopodium clavatum L. | 824 images |
| Lycopodium dendroideum Michx. | 235 images |
| Lycopodium digitatum Dill. ex A.Braun | 34 images |
| Lycopodium obscurum L. | 3 images |
| Lycopodium tristachyum Pursh | 98 images |
| Lycopus americanus Muhl. ex W.P.C.Barton | 8 images |
| Lycopus europaeus L. | 6584 images |
| Lycopus rubellus Moench | 8 images |
| Lycopus uniflorus Michx. | 158 images |
| Lycopus virginicus L. | 41 images |
| Lycoris radiata (L'Hér.) Herb. | 431 images |
| Lycoris squamigera Maxim. | 460 images |
| Lygodesmia aphylla DC. | 24 images |
| Lygodesmia juncea (Pursh) D.Don ex Hook. | 1 images |
| Lygodium japonicum (Thunb.) Sw. | 149 images |
| Lygodium microphyllum (Cav.) R.Br. | 53 images |
| Lygodium palmatum (Bernh.) Sw. | 44 images |
| Lyonia ferruginea (Walter) Nutt. | 16 images |
| Lyonia fruticosa (Michx.) G.S.Torr. ex B.L.Rob. | 1 images |
| Lyonia ligustrina (L.) DC. | 14 images |
| Lyonia lucida (Lam.) K.Koch | 1 images |
| Lyonia mariana (L.) D.Don | 8 images |
| Lysimachia arvensis (L.) U.Manns & Anderb. | 11429 images |
| Lysimachia barystachys Bunge | 7 images |
| Lysimachia borealis (Raf.) U.Manns & Anderb. | 635 images |
| Lysimachia ciliata L. | 1027 images |
| Lysimachia clethroides Duby | 1291 images |
| Lysimachia foemina (Mill.) U.Manns & Anderb. | 2552 images |
| Lysimachia hybrida Michx. | 1 images |
| Lysimachia japonica Thunb. | 6 images |
| Lysimachia lanceolata Walter | 30 images |
| Lysimachia maritima (L.) Galasso, Banfi & Soldano | 455 images |
| Lysimachia minima (L.) U.Manns & Anderb. | 18 images |
| Lysimachia monelli (L.) U.Manns & Anderb. | 784 images |
| Lysimachia nummularia L. | 5010 images |
| Lysimachia ovalis (Ruiz & Pav.) U.Manns & Anderb. | 10 images |
| Lysimachia punctata L. | 10401 images |
| Lysimachia quadriflora Sims | 12 images |
| Lysimachia quadrifolia L. | 213 images |
| Lysimachia terrestris (L.) Britton, Sterns & Poggenb. | 37 images |
| Lysimachia thyrsiflora L. | 376 images |
| Lysimachia vulgaris L. | 9609 images |
| Lythrum alatum Pursh | 63 images |
| Lythrum flagellare Shuttlew. ex Chapm. | 3 images |
| Lythrum hyssopifolia L. | 576 images |
| Lythrum lineare L. | 6 images |
| Lythrum salicaria L. | 26348 images |
| Lythrum thymifolia L. | 13 images |
| Lythrum virgatum L. | 4033 images |
| Macbridea alba Chapm. | 1 images |
| Macleaya cordata (Willd.) R.Br. | 1068 images |
| Maclura pomifera (Raf.) C.K.Schneid. | 4580 images |
| Macradenia lutescens R.Br. | 2 images |
| Macroptilium atropurpureum (DC.) Urb. | 366 images |
| Macroptilium lathyroides (L.) Urb. | 420 images |
| Macrothelypteris torresiana (Gaudich.) Ching | 203 images |
| Madia sativa Molina | 85 images |
| Magnolia × soulangeana Soul.-Bod. | 5953 images |
| Magnolia acuminata (L.) L. | 960 images |
| Magnolia ashei Weath. | 2 images |
| Magnolia fraseri Walter | 128 images |
| Magnolia grandiflora L. | 12199 images |
| Magnolia macrophylla Michx. | 566 images |
| Magnolia tripetala (L.) L. | 479 images |
| Magnolia virginiana L. | 3603 images |
| Maianthemum canadense Desf. | 1137 images |
| Maianthemum racemosum (L.) Link | 1655 images |
| Maianthemum stellatum (L.) Link | 606 images |
| Malachra capitata (L.) L. | 20 images |
| Malaxis spicata Sw. | 2 images |
| Malaxis unifolia Michx. | 17 images |
| Malus angustifolia (Aiton) Michx. | 31 images |
| Malus baccata (L.) Borkh. | 3125 images |
| Malus coronaria (L.) Mill. | 122 images |
| Malus domestica (Suckow) Borkh. | 8897 images |
| Malus halliana Koehne | 42 images |
| Malus ioensis (Alph.Wood) Britton | 22 images |
| Malus prunifolia (Willd.) Borkh. | 259 images |
| Malus toringo (Siebold) de Vriese | 151 images |
| Malva moschata L. | 5992 images |
| Malva neglecta Wallr. | 6158 images |
| Malva nicaeensis All. | 179 images |
| Malva parviflora L. | 3170 images |
| Malva pusilla Sm. | 1657 images |
| Malva sylvestris L. | 27543 images |
| Malva verticillata L. | 264 images |
| Malvastrum americanum (L.) Torr. | 26 images |
| Malvastrum coromandelianum (L.) Garcke | 908 images |
| Malvastrum hispidum (Pursh) Hochr. | 6 images |
| Malvaviscus arboreus Dill. ex Cav. | 86 images |
| Malvaviscus penduliflorus Moc. & Sessé ex DC. | 377 images |
| Mammea americana L. | 328 images |
| Mangifera indica L. | 6458 images |
| Manihot esculenta Crantz | 1361 images |
| Manihot grahamii Hook. | 155 images |
| Manilkara jaimiqui (C.Wright ex Griseb.) Dubard | 1 images |
| Manilkara zapota (L.) P.Royen | 875 images |
| Maranta arundinacea L. | 649 images |
| Marrubium vulgare L. | 4699 images |
| Marshallia caespitosa Nutt. ex DC. | 20 images |
| Marshallia graminifolia (Walter) Small | 4 images |
| Marshallia grandiflora Beadle & F.E.Boynton | 3 images |
| Marsilea hirsuta R.Br. | 5 images |
| Marsilea macropoda Engelm. ex A.Braun | 4 images |
| Marsilea minuta L. | 32 images |
| Marsilea mutica Mett. | 4 images |
| Marsilea quadrifolia L. | 305 images |
| Matelea carolinensis (Jacq.) Woodson | 63 images |
| Matelea decipiens (Alexander) Woodson | 10 images |
| Matelea obliqua (Jacq.) Woodson | 6 images |
| Matelea pubiflora (Decne.) Woodson | 3 images |
| Matricaria chamomilla L. | 10457 images |
| Matricaria discoidea DC. | 3935 images |
| Maxillaria crassifolia (Lindl.) Rchb.f. | 4 images |
| Maxillaria parviflora (Poepp. & Endl.) Garay | 8 images |
| Mayaca fluviatilis Aubl. | 36 images |
| Mazus miquelii Makino | 25 images |
| Mazus pumilus (Burm.f.) Steenis | 288 images |
| Mecardonia acuminata (Walter) Small | 7 images |
| Mecardonia procumbens (Mill.) Small | 236 images |
| Medeola virginiana L. | 361 images |
| Medicago arabica (L.) Huds. | 3605 images |
| Medicago littoralis Rohde ex Loisel. | 518 images |
| Medicago lupulina L. | 7980 images |
| Medicago minima (L.) Bartal. | 67 images |
| Medicago monspeliaca (L.) Trautv. | 128 images |
| Medicago orbicularis (L.) Bartal. | 803 images |
| Medicago polymorpha L. | 2941 images |
| Medicago sativa L. | 17781 images |
| Meehania cordata (Nutt.) Britton | 8 images |
| Megathyrsus maximus (Jacq.) B.K.Simon & S.W.L.Jacobs | 272 images |
| Melaleuca citrina (Curtis) Dum.Cours. | 11581 images |
| Melaleuca linariifolia Sm. | 202 images |
| Melaleuca quinquenervia (Cav.) S.T.Blake | 481 images |
| Melaleuca viminalis (Sol. ex Gaertn.) Byrnes | 2163 images |
| Melampodium divaricatum (Rich.) DC. | 152 images |
| Melampodium sericeum Lag. | 4 images |
| Melampyrum lineare Lam. | 182 images |
| Melanthera nivea (L.) Small | 115 images |
| Melanthera parvifolia Small | 1 images |
| Melanthium virginicum L. | 9 images |
| Melastoma malabathricum L. | 876 images |
| Melia azedarach L. | 12197 images |
| Melica mutica Walter | 21 images |
| Melica nitens (Scribn.) Nutt. ex Piper | 3 images |
| Melicoccus bijugatus Jacq. | 311 images |
| Melilotus albus Medik. | 8437 images |
| Melilotus indicus (L.) All. | 2431 images |
| Melilotus officinalis (L.) Lam. | 4731 images |
| Melinis minutiflora P.Beauv. | 279 images |
| Melinis repens (Willd.) Zizka | 600 images |
| Melissa officinalis L. | 15046 images |
| Melochia corchorifolia L. | 107 images |
| Melochia nodiflora Sw. | 66 images |
| Melochia pyramidata L. | 169 images |
| Melochia tomentosa L. | 106 images |
| Melochia villosa (Mill.) Fawc. & Rendle | 77 images |
| Melothria pendula L. | 585 images |
| Menispermum canadense L. | 301 images |
| Mentha × dumetorum Schult. | 1 images |
| Mentha × gracilis Sole | 12 images |
| Mentha × piperita L. | 3814 images |
| Mentha × rotundifolia (L.) Huds. | 1664 images |
| Mentha × villosa Huds. | 544 images |
| Mentha arvensis L. | 3540 images |
| Mentha canadensis L. | 14 images |
| Mentha spicata L. | 9429 images |
| Mentha suaveolens Ehrh. | 11599 images |
| Mentzelia oligosperma Nutt. ex Sims | 1 images |
| Menyanthes trifoliata L. | 2019 images |
| Mercurialis annua L. | 7775 images |
| Mertensia virginica (L.) Pers. ex Link | 937 images |
| Mesosphaerum pectinatum (L.) Kuntze | 25 images |
| Metopium toxiferum (L.) Krug & Urb. | 25 images |
| Miconia bicolor (Mill.) Triana | 9 images |
| Micranthemum umbrosum (J.F.Gmel.) S.F.Blake | 25 images |
| Micranthes micranthidifolia (Haw.) Small | 8 images |
| Micranthes pensylvanica (L.) Haw. | 43 images |
| Micranthes petiolaris (Raf.) Bush | 22 images |
| Micranthes texana (Buckley) Small | 10 images |
| Micranthes virginiensis (Michx.) Small | 108 images |
| Microgramma heterophylla (L.) Wherry | 1 images |
| Microseris cuspidata (Pursh) Sch.Bip. | 15 images |
| Microstachys corniculata (Vahl) A.Juss. ex Griseb. | 20 images |
| Microstegium vimineum (Trin.) A.Camus | 158 images |
| Mikania cordifolia (L.f.) Willd. | 85 images |
| Mikania micrantha Kunth | 345 images |
| Mikania scandens (L.) Willd. | 325 images |
| Milium effusum L. | 409 images |
| Mimosa pigra L. | 429 images |
| Mimosa quadrivalvis L. | 316 images |
| Mimosa strigillosa Torr. & A.Gray | 5 images |
| Mimulus alatus Aiton | 124 images |
| Mimulus ringens L. | 526 images |
| Mimusops elengi L. | 385 images |
| Mirabilis albida (Walter) Heimerl | 54 images |
| Mirabilis jalapa L. | 17588 images |
| Mirabilis linearis (Pursh) Heimerl | 17 images |
| Mirabilis nyctaginea (Michx.) MacMill. | 285 images |
| Miscanthus floridulus (Labill.) Warb. ex K.Schum. & Lauterb. | 10 images |
| Miscanthus sacchariflorus (Maxim.) Benth. & Hook.f. ex Franch. | 62 images |
| Miscanthus sinensis Andersson | 4390 images |
| Misopates orontium (L.) Raf. | 1983 images |
| Mitchella repens L. | 1032 images |
| Mitella diphylla L. | 134 images |
| Mitracarpus hirtus (L.) DC. | 443 images |
| Mitreola petiolata (J.F.Gmel.) Torr. & A.Gray | 4 images |
| Modiola caroliniana (L.) G.Don | 258 images |
| Moehringia lateriflora (L.) Fenzl | 45 images |
| Moenchia erecta (L.) G.Gaertn., B.Mey. & Scherb. | 58 images |
| Mollugo verticillata L. | 373 images |
| Momordica balsamina L. | 266 images |
| Momordica charantia L. | 2191 images |
| Monarda bradburiana Beck | 25 images |
| Monarda citriodora Cerv. ex Lag. | 423 images |
| Monarda clinopodia L. | 97 images |
| Monarda didyma L. | 3745 images |
| Monarda fistulosa L. | 2819 images |
| Monarda media Willd. | 18 images |
| Monarda punctata L. | 468 images |
| Monarda russeliana Nutt. ex Sims | 19 images |
| Mononeuria minima (Mack.) Dillenb. & Kadereit | 1 images |
| Mononeuria nuttallii (Torr. & A.Gray) Dillenb. & Kadereit | 4 images |
| Mononeuria patula (Michx.) Dillenb. & Kadereit | 27 images |
| Monotropa hypopitys L. | 1323 images |
| Monotropa uniflora L. | 1242 images |
| Monotropsis odorata Schwein. | 6 images |
| Montia linearis (Douglas) Greene | 13 images |
| Moorochloa eruciformis (Sm.) Veldkamp | 12 images |
| Morinda royoc L. | 30 images |
| Moringa oleifera Lam. | 2189 images |
| Morisonia cynophallophora (L.) Christenh. & Byng | 63 images |
| Morisonia flexuosa L. | 286 images |
| Morus alba L. | 12405 images |
| Morus rubra L. | 3865 images |
| Mosla dianthera (Buch.-Ham. ex Roxb.) Maxim. | 3 images |
| Mucuna sloanei Fawc. & Rendle | 37 images |
| Muhlenbergia capillaris (Lam.) Trin. | 319 images |
| Muhlenbergia emersleyi Vasey | 1 images |
| Muhlenbergia frondosa (Poir.) Fernald | 8 images |
| Muhlenbergia glabrifloris Scribn. | 1 images |
| Muhlenbergia glomerata (Willd.) Trin. | 1 images |
| Muhlenbergia mexicana (L.) Trin. | 11 images |
| Muhlenbergia schreberi J.F.Gmel. | 13 images |
| Mummenhoffia alliacea (L.) Esmailbegi & Al-Shehbaz | 267 images |
| Muntingia calabura L. | 947 images |
| Murdannia keisak (Hassk.) Hand.-Mazz. | 20 images |
| Murdannia nudiflora (L.) Brenan | 167 images |
| Murraya paniculata (L.) Jack | 2651 images |
| Musa × paradisiaca L. | 1848 images |
| Musa acuminata Colla | 3154 images |
| Muscari armeniacum H.J.Veitch | 36 images |
| Muscari botryoides (L.) Mill. | 5664 images |
| Muscari comosum (L.) Mill. | 11419 images |
| Muscari neglectum Guss. ex Ten. | 10883 images |
| Myagrum perfoliatum L. | 158 images |
| Myosotis arvensis (L.) Hill | 3539 images |
| Myosotis discolor Pers. | 885 images |
| Myosotis laxa Lehm. | 346 images |
| Myosotis macrosperma Engelm. | 91 images |
| Myosotis scorpioides L. | 6353 images |
| Myosotis stricta Link ex Roem. & Schult. | 740 images |
| Myosotis sylvatica Ehrh. ex Hoffm. | 587 images |
| Myosotis verna Nutt. | 13 images |
| Myrcia zuzygium (L.) A.R.Lourenço & E.Lucas | 1 images |
| Myrcianthes fragrans (Sw.) McVaugh | 45 images |
| Myrica caroliniensis Mill. | 10 images |
| Myrica cerifera L. | 681 images |
| Myrica gale L. | 811 images |
| Myrica pensylvanica Mirb. | 128 images |
| Myriophyllum aquaticum (Vell.) Verdc. | 655 images |
| Myriophyllum heterophyllum Michx. | 10 images |
| Myriophyllum sibiricum Kom. | 8 images |
| Myriophyllum spicatum L. | 410 images |
| Myriophyllum verticillatum L. | 84 images |
| Myriopus volubilis (L.) Small | 5 images |
| Myroxylon balsamum (L.) Harms | 40 images |
| Myrsine cubana A.DC. | 4 images |
| Myrtus communis L. | 10892 images |
| Nabalus albus (L.) Hook. | 227 images |
| Nabalus altissimus (L.) Hook. | 11 images |
| Nabalus serpentarius (Pursh) Hook. | 9 images |
| Najas gracillima (A.Braun ex Engelm.) Magnus | 1 images |
| Najas guadalupensis (Spreng.) Magnus | 15 images |
| Najas marina L. | 159 images |
| Najas minor All. | 27 images |
| Nama hispida A.Gray | 1 images |
| Nama jamaicensis L. | 5 images |
| Nandina domestica Thunb. | 8556 images |
| Narcissus × compressus Haw. | 6 images |
| Narcissus × incomparabilis Mill. | 85 images |
| Narcissus × medioluteus Mill. | 580 images |
| Narcissus × odorus L. | 15 images |
| Narcissus assoanus Dufour ex Schult. & Schult.f. | 403 images |
| Narcissus bulbocodium L. | 1155 images |
| Narcissus jonquilla L. | 2130 images |
| Narcissus papyraceus Ker Gawl. | 1459 images |
| Narcissus poeticus L. | 3131 images |
| Narcissus pseudonarcissus L. | 9638 images |
| Narcissus tazetta L. | 3309 images |
| Narthecium americanum Ker Gawl. | 1 images |
| Nassella leucotricha (Trin. & Rupr.) R.W.Pohl | 1 images |
| Nassella neesiana (Trin. & Rupr.) Barkworth | 33 images |
| Nassella trichotoma (Nees) Hack. & Arechav. | 14 images |
| Nasturtium microphyllum (Boenn.) Rchb. | 76 images |
| Nasturtium officinale W.T.Aiton | 971 images |
| Navarretia intertexta (Benth.) Hook. | 27 images |
| Neillia incisa (Thunb.) S.H.Oh | 399 images |
| Nekemias arborea (L.) J.Wen & Boggan | 1 images |
| Nelsonia canescens (Lam.) Spreng. | 84 images |
| Nelumbo lutea (Willd.) Pers. | 6 images |
| Nelumbo nucifera Gaertn. | 2333 images |
| Nemastylis floridana Small | 6 images |
| Nemastylis geminiflora Nutt. | 42 images |
| Nemophila aphylla (L.) Brummitt | 31 images |
| Nemophila phacelioides W.P.C.Barton | 108 images |
| Neottia bifolia (Raf.) Baumbach | 1 images |
| Neottia cordata (L.) Rich. | 219 images |
| Neottia smallii (Wiegand) Szlach. | 2 images |
| Nepeta cataria L. | 4264 images |
| Nephrolepis × averyi Nauman | 1 images |
| Nephrolepis biserrata (Sw.) Schott | 1328 images |
| Nephrolepis brownii (Desv.) Hovenkamp & Miyam. | 46 images |
| Nephrolepis cordifolia (L.) C.Presl | 954 images |
| Nephrolepis exaltata (L.) Schott | 3263 images |
| Neptunia lutea (Leavenw.) Benth. | 17 images |
| Neptunia oleracea Lour. | 63 images |
| Neptunia pubescens Benth. | 24 images |
| Nerium oleander L. | 27141 images |
| Neviusia alabamensis A.Gray | 41 images |
| Neyraudia reynaudiana (Kunth) Keng ex Hitchc. | 18 images |
| Nicandra physalodes (L.) Gaertn. | 3382 images |
| Nicotiana glauca Graham | 4115 images |
| Nicotiana longiflora Cav. | 96 images |
| Nicotiana repanda Willd. ex Lehm. | 1 images |
| Nicotiana tabacum L. | 3073 images |
| Nigella damascena L. | 14293 images |
| Noccaea perfoliata (L.) Al-Shehbaz | 1260 images |
| Nolina brittoniana Nash | 4 images |
| Nolina georgiana Michx. | 1 images |
| Noronhia emarginata (Lam.) Poir. | 103 images |
| Nothoscordum bivalve (L.) Britton | 637 images |
| Nothoscordum gracile (Aiton) Stearn | 885 images |
| Nuphar advena (Aiton) W.T.Aiton | 3 images |
| Nuphar sagittifolia (Walter) Pursh | 1 images |
| Nuphar variegata Engelm. ex Durand | 1 images |
| Nuttallanthus canadensis (L.) D.A.Sutton | 32 images |
| Nuttallanthus floridanus (Chapm.) D.A.Sutton | 237 images |
| Nuttallanthus texanus (Scheele) D.A.Sutton | 1 images |
| Nymphaea ampla (Salisb.) DC. | 164 images |
| Nymphaea elegans Hook. | 35 images |
| Nymphaea lotus L. | 271 images |
| Nymphaea mexicana Zucc. | 234 images |
| Nymphaea nouchali Burm.f. | 804 images |
| Nymphaea odorata Aiton | 475 images |
| Nymphoides cordata (Elliott) Fernald | 8 images |
| Nymphoides cristata (Roxb.) Kuntze | 33 images |
| Nymphoides humboldtiana (Kunth) Kuntze | 9 images |
| Nymphoides indica (L.) Kuntze | 168 images |
| Nymphoides peltata (S.G.Gmel.) Kuntze | 548 images |
| Nyssa aquatica L. | 62 images |
| Nyssa biflora Walter | 13 images |
| Nyssa ogeche W.Bartram ex Marshall | 1 images |
| Nyssa sylvatica Marshall | 1259 images |
| Obolaria virginica L. | 66 images |
| Ochna atropurpurea DC. | 14 images |
| Ochna serrulata (Hochst.) Walp. | 132 images |
| Ocimum campechianum Mill. | 274 images |
| Oclemena acuminata (Michx.) Greene | 391 images |
| Odontonema cuspidatum (Nees) Kuntze | 1096 images |
| Odontonema tubaeforme (Bertol.) Kuntze | 136 images |
| Oenanthe aquatica (L.) Poir. | 419 images |
| Oenanthe javanica (Blume) DC. | 62 images |
| Oenanthe pimpinelloides L. | 862 images |
| Oenothera argillicola Mack. | 9 images |
| Oenothera biennis L. | 15798 images |
| Oenothera curtiflora W.L.Wagner & Hoch | 4 images |
| Oenothera demareei (P.H.Raven & D.P.Greg.) W.L.Wagner & Hoch | 6 images |
| Oenothera drummondii Hook. | 246 images |
| Oenothera filiformis (Small) W.L.Wagner & Hoch | 4 images |
| Oenothera filipes (Spach) W.L.Wagner & Hoch | 9 images |
| Oenothera fruticosa L. | 1937 images |
| Oenothera gaura W.L.Wagner & Hoch | 2968 images |
| Oenothera glazioviana Micheli | 9168 images |
| Oenothera grandiflora L'Hér. | 1 images |
| Oenothera grandis Smyth | 2 images |
| Oenothera humifusa Nutt. | 15 images |
| Oenothera laciniata Hill | 607 images |
| Oenothera lindheimeri (Engelm. & A.Gray) W.L.Wagner & Hoch | 8810 images |
| Oenothera linifolia Nutt. | 14 images |
| Oenothera macrocarpa Nutt. | 771 images |
| Oenothera oakesiana (A.Gray) J.W.Robbins ex S.Watson | 6 images |
| Oenothera parviflora L. | 3185 images |
| Oenothera perennis L. | 12 images |
| Oenothera pilosella Raf. | 42 images |
| Oenothera rhombipetala Nutt. | 12 images |
| Oenothera simulans (Small) W.L.Wagner & Hoch | 9 images |
| Oenothera speciosa Nutt. | 3466 images |
| Oenothera suffrutescens (Moc. & Sessé ex Ser.) W.L.Wagner & Hoch | 106 images |
| Oenothera tetragona Roth | 23 images |
| Oenothera triloba Nutt. | 85 images |
| Oenothera villosa Thunb. | 118 images |
| Oldenlandia corymbosa L. | 568 images |
| Oldenlandia salzmannii (DC.) Benth. & Hook.f. ex B.D.Jacks. | 15 images |
| Oldenlandiopsis callitrichoides (Griseb.) Terrell & W.H.Lewis | 1 images |
| Oloptum miliaceum (L.) Röser & Hamasha | 995 images |
| Oncidium ensatum Lindl. | 7 images |
| Oncoba spinosa Forssk. | 22 images |
| Onoclea sensibilis L. | 1839 images |
| Onopordum acanthium L. | 5655 images |
| Ophioglossum crotalophoroides Walter | 4 images |
| Ophioglossum engelmannii Prantl | 12 images |
| Ophioglossum pendulum L. | 42 images |
| Ophioglossum petiolatum Hook. | 10 images |
| Ophioglossum pusillum Raf. | 4 images |
| Ophioglossum vulgatum L. | 385 images |
| Ophiopogon japonicus (Thunb.) Ker Gawl. | 564 images |
| Oplismenus burmanni (Retz.) P.Beauv. | 48 images |
| Oplismenus compositus (L.) P.Beauv. | 62 images |
| Oplismenus hirtellus (L.) P.Beauv. | 17 images |
| Oplismenus undulatifolius (Ard.) P.Beauv. | 185 images |
| Opuntia cespitosa Raf. | 2 images |
| Opuntia cochenillifera (L.) Mill. | 525 images |
| Opuntia dillenii (Ker Gawl.) Haw. | 218 images |
| Opuntia engelmannii Salm-Dyck ex Engelm. | 816 images |
| Opuntia ficus-indica (L.) Mill. | 7286 images |
| Opuntia humifusa (Raf.) Raf. | 1396 images |
| Opuntia macrorhiza Engelm. | 88 images |
| Opuntia mesacantha Raf. | 1 images |
| Opuntia monacanthos (Willd.) Haw. | 7 images |
| Opuntia stricta (Haw.) Haw. | 1821 images |
| Orbexilum onobrychis (Nutt.) Rydb. | 6 images |
| Oreojuncus trifidus (L.) Záv.Drábk. & Kirschner | 222 images |
| Origanum vulgare L. | 22392 images |
| Ornithogalum nutans L. | 1283 images |
| Ornithogalum umbellatum L. | 8687 images |
| Orobanche ludoviciana Nutt. | 11 images |
| Orobanche minor Sm. | 2410 images |
| Orobanche ramosa L. | 482 images |
| Orobanche uniflora L. | 118 images |
| Orontium aquaticum L. | 137 images |
| Orthilia secunda (L.) House | 604 images |
| Oryza rufipogon Griff. | 2 images |
| Oryza sativa L. | 530 images |
| Oryzopsis asperifolia Michx. | 4 images |
| Osmorhiza claytonii (Michx.) C.B.Clarke | 25 images |
| Osmorhiza longistylis (Torr.) DC. | 386 images |
| Osmunda claytoniana L. | 464 images |
| Osmunda spectabilis Willd. | 5 images |
| Osmundastrum cinnamomeum (L.) C.Presl | 210 images |
| Ostrya virginiana (Mill.) K.Koch | 444 images |
| Ottelia alismoides (L.) Pers. | 26 images |
| Oxalis articulata Savigny | 5737 images |
| Oxalis brasiliensis G.Lodd. ex Drapiez | 1 images |
| Oxalis corniculata L. | 10129 images |
| Oxalis debilis Kunth | 3212 images |
| Oxalis dillenii Jacq. | 2798 images |
| Oxalis grandis Small | 30 images |
| Oxalis hispidula Zucc. | 38 images |
| Oxalis latifolia Kunth | 2987 images |
| Oxalis macrantha (Trel.) Small | 12 images |
| Oxalis montana Raf. | 67 images |
| Oxalis pes-caprae L. | 8372 images |
| Oxalis stricta L. | 2940 images |
| Oxalis triangularis A.St.-Hil. | 1358 images |
| Oxalis violacea L. | 625 images |
| Oxybasis glauca (L.) S.Fuentes, Uotila & Borsch | 298 images |
| Oxybasis urbica (L.) S.Fuentes, Uotila & Borsch | 44 images |
| Oxydendrum arboreum (L.) DC. | 470 images |
| Oxypolis rigidior (L.) Raf. | 23 images |
| Pachyrhizus erosus (L.) Urb. | 133 images |
| Pachysandra procumbens Michx. | 53 images |
| Pachysandra terminalis Siebold & Zucc. | 1813 images |
| Packera anonyma (Alph.Wood) W.A.Weber & Á.Löve | 2 images |
| Packera aurea (L.) Á.Löve & D.Löve | 210 images |
| Packera dubia (Spreng.) Trock & Mabb. | 12 images |
| Packera glabella (Poir.) C.Jeffrey | 276 images |
| Packera millefolium (Torr. & A.Gray) W.A.Weber & Á.Löve | 1 images |
| Packera paupercula (Michx.) Á.Löve & D.Löve | 2 images |
| Packera plattensis (Nutt.) W.A.Weber & Á.Löve | 1 images |
| Paederia foetida L. | 169 images |
| Paepalanthus anceps (Walter) Christenh. & Byng | 1 images |
| Palafoxia callosa (Nutt.) Torr. & A.Gray | 1 images |
| Palafoxia feayi A.Gray | 1 images |
| Palafoxia integrifolia Torr. & A.Gray | 7 images |
| Palafoxia texana DC. | 22 images |
| Palustricodon aparinoides (Pursh) Morin | 20 images |
| Panax quinquefolius L. | 130 images |
| Panax trifolius L. | 147 images |
| Pancratium maritimum L. | 5878 images |
| Pandanus odorifer (Forssk.) Kuntze | 23 images |
| Panicum amarum Elliott | 11 images |
| Panicum antidotale Retz. | 1 images |
| Panicum capillare L. | 844 images |
| Panicum dichotomiflorum Michx. | 98 images |
| Panicum miliaceum L. | 1434 images |
| Panicum repens L. | 103 images |
| Panicum sumatrense Roth | 1 images |
| Panicum virgatum L. | 1198 images |
| Papaver dubium L. | 4391 images |
| Papaver orientale L. | 5034 images |
| Papaver rhoeas L. | 12688 images |
| Papaver somniferum L. | 11618 images |
| Parapholis cylindrica (Willd.) Romero Zarco | 22 images |
| Parapholis incurva (L.) C.E.Hubb. | 91 images |
| Parentucellia viscosa (L.) Caruel | 1121 images |
| Parietaria floridana Nutt. | 77 images |
| Parietaria judaica L. | 6036 images |
| Parietaria officinalis L. | 3289 images |
| Parietaria pensylvanica Muhl. ex Willd. | 233 images |
| Parkinsonia aculeata L. | 2464 images |
| Parnassia asarifolia Vent. | 8 images |
| Parnassia grandifolia DC. | 8 images |
| Paronychia argyrocoma (Michx.) Nutt. | 18 images |
| Paronychia fastigiata (Raf.) Fernald | 3 images |
| Paronychia virginica Spreng. | 12 images |
| Parthenium hysterophorus L. | 1283 images |
| Parthenium integrifolium L. | 230 images |
| Parthenocissus quinquefolia (L.) Planch. | 18316 images |
| Parthenocissus tricuspidata (Siebold & Zucc.) Planch. | 4676 images |
| Parthenocissus vitacea (Knerr) Hitchc. | 4 images |
| Pascalia glauca Ortega | 55 images |
| Paspalum bifidum (Bertol.) Nash | 7 images |
| Paspalum conjugatum P.J.Bergius | 50 images |
| Paspalum dilatatum Poir. | 1459 images |
| Paspalum distichum L. | 290 images |
| Paspalum fimbriatum Kunth | 34 images |
| Paspalum floridanum Michx. | 5 images |
| Paspalum malacophyllum Trin. | 4 images |
| Paspalum notatum Flüggé | 55 images |
| Paspalum paniculatum L. | 97 images |
| Paspalum plicatulum Michx. | 31 images |
| Paspalum quadrifarium Lam. | 6 images |
| Paspalum repens P.J.Bergius | 168 images |
| Paspalum scrobiculatum L. | 34 images |
| Paspalum setaceum Michx. | 13 images |
| Paspalum urvillei Steud. | 113 images |
| Paspalum vaginatum Sw. | 48 images |
| Paspalum virgatum L. | 39 images |
| Passiflora biflora Lam. | 82 images |
| Passiflora ciliata Aiton | 31 images |
| Passiflora edulis Sims | 4185 images |
| Passiflora incarnata L. | 769 images |
| Passiflora lutea L. | 323 images |
| Passiflora miniata Vanderpl. | 135 images |
| Passiflora multiflora L. | 7 images |
| Passiflora pallida L. | 15 images |
| Passiflora sexflora Juss. | 4 images |
| Passiflora vitifolia Kunth | 527 images |
| Pastinaca sativa L. | 7687 images |
| Paulownia tomentosa (Thunb.) Steud. | 11005 images |
| Pavonia hastata Cav. | 193 images |
| Pavonia paludicola Nicolson ex Fryxell | 3 images |
| Pavonia spinifex (L.) Cav. | 73 images |
| Paxistima canbyi A.Gray | 11 images |
| Pecluma plumula (Humb. & Bonpl. ex Willd.) M.G.Price | 78 images |
| Pectis glaucescens (Cass.) D.J.Keil | 1 images |
| Pectis humifusa Sw. | 28 images |
| Pectis linifolia L. | 2 images |
| Pectis prostrata Cav. | 46 images |
| Pedicularis canadensis L. | 213 images |
| Pedicularis lanceolata Michx. | 24 images |
| Pediomelum rhombifolium (Torr. & A.Gray) Rydb. | 1 images |
| Peltandra sagittifolia (Michx.) Morong | 4 images |
| Peltandra virginica (L.) Schott | 172 images |
| Peltophorum pterocarpum (DC.) Backer ex K.Heyne | 227 images |
| Penstemon arkansanus Pennell | 23 images |
| Penstemon australis Small | 3 images |
| Penstemon calycosus Small | 36 images |
| Penstemon canescens Britton | 50 images |
| Penstemon cobaea Nutt. | 198 images |
| Penstemon digitalis Nutt. ex Sims | 1527 images |
| Penstemon hirsutus (L.) Willd. | 191 images |
| Penstemon laevigatus Aiton | 9 images |
| Penstemon laxiflorus Pennell | 16 images |
| Penstemon murrayanus Hook. | 10 images |
| Penstemon pallidus Small | 33 images |
| Penstemon smallii A.Heller | 20 images |
| Penstemon tenuiflorus Pennell | 26 images |
| Penstemon tenuis Small | 49 images |
| Pentalinon luteum (L.) B.F.Hansen & Wunderlin | 75 images |
| Pentanema britannica (L.) D.Gut.Larr., Santos-Vicente, Anderb., E.Rico & M.M.Mart.Ort. | 1289 images |
| Penthorum sedoides L. | 62 images |
| Pentodon pentandrus (Schumach. & Thonn.) Vatke | 7 images |
| Peperomia alata Ruiz & Pav. | 1 images |
| Peperomia amplexicaulis (Sw.) A.Dietr. | 5 images |
| Peperomia emarginella (Sw. ex Wikstr.) C.DC. | 4 images |
| Peperomia glabella (Sw.) A.Dietr. | 176 images |
| Peperomia humilis A.Dietr. | 36 images |
| Peperomia magnoliifolia (Jacq.) A.Dietr. | 1790 images |
| Peperomia obtusifolia (L.) A.Dietr. | 2939 images |
| Peperomia pellucida (L.) Kunth | 727 images |
| Peperomia spathulifolia Small | 1 images |
| Pereskia aculeata Mill. | 1386 images |
| Perilla frutescens (L.) Britton | 3025 images |
| Periploca graeca L. | 393 images |
| Persea americana Mill. | 8780 images |
| Persea borbonia (L.) Spreng. | 82 images |
| Persea humilis Nash | 2 images |
| Persea palustris (Raf.) Sarg. | 5 images |
| Persicaria amphibia (L.) Delarbre | 571 images |
| Persicaria capitata (Buch.-Ham. ex D.Don) H.Gross | 2550 images |
| Persicaria careyi (Olney) Greene | 1 images |
| Persicaria chinensis (L.) H.Gross | 197 images |
| Persicaria filiformis (Thunb.) Nakai | 9 images |
| Persicaria glabra (Willd.) M.Gómez | 26 images |
| Persicaria hydropiper (L.) Delarbre | 905 images |
| Persicaria hydropiperoides (Michx.) Small | 22 images |
| Persicaria lapathifolia (L.) Delarbre | 4221 images |
| Persicaria longiseta (Bruijn) Kitag. | 11 images |
| Persicaria maculosa Gray | 10807 images |
| Persicaria meisneriana (Cham. & Schltdl.) M.Gómez | 2 images |
| Persicaria minor (Huds.) Opiz | 383 images |
| Persicaria nepalensis (Meisn.) H.Gross | 54 images |
| Persicaria orientalis (L.) Spach | 3326 images |
| Persicaria pensylvanica (L.) M.Gómez | 85 images |
| Persicaria perfoliata (L.) H.Gross | 16 images |
| Persicaria punctata (Elliott) Small | 124 images |
| Persicaria sagittata (L.) H.Gross | 44 images |
| Persicaria virginiana (L.) Gaertn. | 1316 images |
| Petitia domingensis Jacq. | 2 images |
| Petiveria alliacea L. | 695 images |
| Petrea volubilis L. | 2092 images |
| Petrorhagia dubia (Raf.) G.López & Romo | 63 images |
| Petrorhagia prolifera (L.) P.W.Ball & Heywood | 1540 images |
| Petrorhagia saxifraga (L.) Link | 2104 images |
| Petrosedum rupestre (L.) P.V.Heath | 6794 images |
| Petroselinum crispum (Mill.) Fuss | 2988 images |
| Petunia axillaris (Lam.) Britton, Sterns & Poggenb. | 114 images |
| Petunia integrifolia (Hook.) Schinz & Thell. | 171 images |
| Peucedanum ostruthium (L.) W.D.J.Koch | 1394 images |
| Phacelia bipinnatifida Michx. | 122 images |
| Phacelia dubia (L.) Trel. | 5 images |
| Phacelia fimbriata Michx. | 12 images |
| Phacelia hirsuta Nutt. | 14 images |
| Phacelia purshii Buckley | 114 images |
| Phalaris angusta Nees ex Trin. | 6 images |
| Phalaris aquatica L. | 263 images |
| Phalaris arundinacea L. | 3478 images |
| Phalaris brachystachys Link | 10 images |
| Phalaris canariensis L. | 552 images |
| Phalaris minor Retz. | 183 images |
| Phalaris paradoxa L. | 91 images |
| Pharus lappulaceus Aubl. | 17 images |
| Phaseolus coccineus L. | 874 images |
| Phaseolus polystachios (L.) Britton, Sterns & Poggenb. | 4 images |
| Phegopteris connectilis (Michx.) Watt | 839 images |
| Phegopteris hexagonoptera (Michx.) Fée | 1 images |
| Phellodendron amurense Rupr. | 443 images |
| Phemeranthus calycinus (Engelm.) Kiger | 15 images |
| Phemeranthus mengesii (W.Wolf) Kiger | 4 images |
| Phemeranthus parviflorus (Nutt.) Kiger | 7 images |
| Phemeranthus rugospermus (Holz.) Kiger | 2 images |
| Phemeranthus teretifolius (Pursh) Raf. | 9 images |
| Philadelphus coronarius L. | 20431 images |
| Philadelphus hirsutus Nutt. | 27 images |
| Philadelphus inodorus L. | 251 images |
| Philadelphus pubescens Loisel. | 1724 images |
| Phlebodium aureum (L.) J.Sm. | 761 images |
| Phlebodium pseudoaureum (Cav.) Lellinger | 113 images |
| Phleum pratense L. | 3324 images |
| Phleum subulatum (Savi) Asch. & Graebn. | 6 images |
| Phlox amoena Sims | 38 images |
| Phlox amplifolia Britton | 20 images |
| Phlox buckleyi Wherry | 3 images |
| Phlox carolina L. | 52 images |
| Phlox cuspidata Scheele | 10 images |
| Phlox divaricata L. | 1080 images |
| Phlox drummondii Hook. | 1621 images |
| Phlox glaberrima L. | 62 images |
| Phlox maculata L. | 2080 images |
| Phlox paniculata L. | 7230 images |
| Phlox pilosa L. | 198 images |
| Phlox stolonifera Sims | 68 images |
| Phlox subulata L. | 5417 images |
| Phoebanthus grandiflorus S.F.Blake | 4 images |
| Phoenix reclinata Jacq. | 1660 images |
| Phoradendron leucarpum (Raf.) Reveal & M.C.Johnst. | 11 images |
| Photinia glabra (Thunb.) Jacob-Makoy | 6 images |
| Photinia serratifolia (Desf.) Kalkman | 3483 images |
| Phragmites australis (Cav.) Trin. ex Steud. | 7572 images |
| Phryma leptostachya L. | 177 images |
| Phyla lanceolata (Michx.) Greene | 145 images |
| Phyla nodiflora (L.) Greene | 1890 images |
| Phyllanthus acidus (L.) Skeels | 358 images |
| Phyllanthus amarus Schumach. & Thonn. | 608 images |
| Phyllanthus angustifolius (Sw.) Sw. | 36 images |
| Phyllanthus caroliniensis Walter | 25 images |
| Phyllanthus fluitans Benth. ex Müll.Arg. | 3 images |
| Phyllanthus fraternus G.L.Webster | 3 images |
| Phyllanthus polygonoides Nutt. ex Spreng. | 31 images |
| Phyllanthus tenellus Roxb. | 917 images |
| Phyllanthus urinaria L. | 594 images |
| Phyllostachys aurea (André) Rivière & C.Rivière | 1734 images |
| Phyllostachys aureosulcata McClure | 385 images |
| Phyllostachys bissetii McClure | 11 images |
| Phyllostachys edulis (Carrière) J.Houz. | 26 images |
| Phyllostachys nigra (Lodd. ex Lindl.) Munro | 1536 images |
| Phyllostachys reticulata (Rupr.) K.Koch | 124 images |
| Phyllostachys sulphurea (Carrière) Rivière & C.Rivière | 370 images |
| Phymatosorus scolopendria (Burm.f.) Pic.Serm. | 805 images |
| Physalis acutifolia (Miers) Sandwith | 6 images |
| Physalis angulata L. | 1219 images |
| Physalis angustifolia Nutt. | 14 images |
| Physalis arenicola Kearney | 3 images |
| Physalis cordata Houst. ex Mill. | 2 images |
| Physalis grisea (Waterf.) M.Martínez | 1 images |
| Physalis heterophylla Nees | 159 images |
| Physalis longifolia Nutt. | 281 images |
| Physalis mollis Nutt. | 11 images |
| Physalis philadelphica Lam. | 826 images |
| Physalis pubescens L. | 254 images |
| Physalis pumila Nutt. | 10 images |
| Physalis virginiana Mill. | 3 images |
| Physalis walteri Nutt. | 12 images |
| Physocarpus opulifolius (L.) Maxim. | 5663 images |
| Physostegia angustifolia Fernald | 11 images |
| Physostegia digitalis Small | 4 images |
| Physostegia virginiana (L.) Benth. | 2589 images |
| Phytolacca americana L. | 20994 images |
| Phytolacca bogotensis Kunth | 1376 images |
| Phytolacca icosandra L. | 157 images |
| Picea abies (L.) H.Karst. | 11527 images |
| Picea rubens Sarg. | 2325 images |
| Picramnia pentandra Sw. | 17 images |
| Picris hieracioides L. | 5109 images |
| Pieris floribunda (Pursh) Benth. & Hook.f. | 20 images |
| Pilea fontana (Lunell) Rydb. | 2 images |
| Pilea herniarioides (Sw.) Lindl. | 1 images |
| Pilea microphylla (L.) Liebm. | 2543 images |
| Pilea pumila A.Gray | 611 images |
| Piloblephis rigida (W.Bartram ex Benth.) Raf. | 10 images |
| Pilosella aurantiaca (L.) F.W.Schultz & Sch.Bip. | 9599 images |
| Pilosella caespitosa (Dumort.) P.D.Sell & C.West | 407 images |
| Pilosella flagellaris (Willd.) Arv.-Touv. | 1 images |
| Pilosella officinarum Vaill. | 3014 images |
| Pilosella piloselloides (Vill.) Soják | 309 images |
| Pilosocereus robinii (Lem.) Byles & G.D.Rowley | 4 images |
| Pilularia americana A.Braun | 1 images |
| Pimenta dioica (L.) Merr. | 218 images |
| Pimpinella saxifraga L. | 2401 images |
| Pinellia ternata (Thunb.) Makino | 9 images |
| Pinguicula caerulea Walter | 16 images |
| Pinguicula lutea Walter | 26 images |
| Pinguicula planifolia Chapm. | 25 images |
| Pinguicula primuliflora C.E.Wood & R.K.Godfrey | 5 images |
| Pinguicula pumila Michx. | 13 images |
| Pinus clausa (Chapm. ex Engelm.) Vasey ex Sarg. | 7 images |
| Pinus echinata Mill. | 151 images |
| Pinus elliottii Engelm. | 146 images |
| Pinus glabra Walter | 32 images |
| Pinus nigra J.F.Arnold | 2865 images |
| Pinus palustris Mill. | 187 images |
| Pinus pungens Lamb. | 59 images |
| Pinus resinosa Aiton | 1578 images |
| Pinus rigida Mill. | 451 images |
| Pinus serotina Michx. | 13 images |
| Pinus strobus L. | 4793 images |
| Pinus sylvestris L. | 12102 images |
| Pinus taeda L. | 453 images |
| Pinus thunbergii Parl. | 256 images |
| Pinus virginiana Mill. | 140 images |
| Piper aduncum L. | 360 images |
| Piper auritum Kunth | 421 images |
| Piriqueta cistoides (L.) Griseb. | 36 images |
| Piscidia piscipula (L.) Sarg. | 30 images |
| Pisonia aculeata L. | 100 images |
| Pistacia chinensis Bunge | 353 images |
| Pistia stratiotes L. | 1074 images |
| Pithecellobium dulce (Roxb.) Benth. | 768 images |
| Pithecellobium keyense Britton | 1 images |
| Pithecellobium unguis-cati (L.) Benth. | 284 images |
| Pittosporum pentandrum (Blanco) Merr. | 18 images |
| Pittosporum tobira (Thunb.) W.T.Aiton | 16172 images |
| Pityopsis graminifolia (Michx.) Nutt. | 67 images |
| Pityrogramma calomelanos (L.) Link | 190 images |
| Pityrogramma trifoliata (L.) R.M.Tryon | 14 images |
| Plagiobothrys figuratus (Piper) I.M.Johnst. | 2 images |
| Plantago aristata Michx. | 27 images |
| Plantago cordata Lam. | 16 images |
| Plantago coronopus L. | 2937 images |
| Plantago heterophylla Nutt. | 1 images |
| Plantago indica L. | 284 images |
| Plantago lanceolata L. | 14988 images |
| Plantago major L. | 11672 images |
| Plantago maritima L. | 1015 images |
| Plantago patagonica Jacq. | 59 images |
| Plantago pusilla Nutt. | 10 images |
| Plantago rhodosperma Decne. | 34 images |
| Plantago rugelii Decne. | 268 images |
| Plantago virginica L. | 194 images |
| Plantago wrightiana Decne. | 9 images |
| Platanthera blephariglottis (Willd.) Lindl. | 39 images |
| Platanthera chapmanii (Small) Luer | 3 images |
| Platanthera ciliaris (L.) Lindl. | 82 images |
| Platanthera clavellata (Michx.) Luer | 45 images |
| Platanthera cristata (Michx.) Lindl. | 5 images |
| Platanthera flava (L.) Lindl. | 17 images |
| Platanthera grandiflora (Bigelow) Lindl. | 11 images |
| Platanthera integrilabia (Correll) Luer | 2 images |
| Platanthera lacera (Michx.) G.Don | 42 images |
| Platanthera leucophaea (Nutt.) Lindl. | 12 images |
| Platanthera nivea (Nutt.) Luer | 6 images |
| Platanthera orbiculata (Pursh) Lindl. | 56 images |
| Platanthera peramoena A.Gray | 10 images |
| Platanthera psycodes (L.) Lindl. | 89 images |
| Platanus occidentalis L. | 9201 images |
| Platycladus orientalis (L.) Franco | 5724 images |
| Plectocephalus americanus (Nutt.) D.Don | 8 images |
| Pleioblastus argenteostriatus (Regel) Nakai | 29 images |
| Pleioblastus simonii (Carrière) Nakai | 7 images |
| Pleioblastus variegatus (J.Dix) Makino | 141 images |
| Pleopeltis astrolepis (Liebm.) E.Fourn. | 3 images |
| Pleopeltis marginata A.R.Sm. & Tejero | 4 images |
| Pleopeltis michauxiana (Weath.) Hickey & Sprunt | 1 images |
| Pluchea baccharis (Mill.) Pruski | 7 images |
| Pluchea camphorata (L.) DC. | 67 images |
| Pluchea carolinensis (Jacq.) G.Don | 110 images |
| Pluchea foetida (L.) DC. | 18 images |
| Pluchea odorata (L.) Cass. | 299 images |
| Pluchea sagittalis (Lam.) Cabrera | 38 images |
| Plumbago auriculata Lam. | 12795 images |
| Plumbago zeylanica L. | 428 images |
| Plumeria obtusa L. | 1459 images |
| Poa angustifolia L. | 5 images |
| Poa annua L. | 3331 images |
| Poa arachnifera Torr. | 19 images |
| Poa autumnalis Muhl. ex Elliott | 3 images |
| Poa bulbosa L. | 1260 images |
| Poa compressa L. | 138 images |
| Poa cuspidata Nutt. | 3 images |
| Poa infirma Kunth | 54 images |
| Poa nemoralis L. | 532 images |
| Poa palustris L. | 144 images |
| Poa pratensis L. | 3312 images |
| Poa trivialis L. | 2180 images |
| Podocarpus macrophyllus (Thunb.) Sweet | 1251 images |
| Podophyllum cymosum (Michx.) Christenh. & Byng | 53 images |
| Podophyllum peltatum L. | 2064 images |
| Podostemum ceratophyllum Michx. | 2 images |
| Pogonia ophioglossoides (L.) Ker Gawl. | 137 images |
| Polemonium reptans L. | 455 images |
| Polemonium vanbruntiae Britton | 1 images |
| Polycarpaea corymbosa (L.) Lam. | 10 images |
| Polycarpon tetraphyllum (L.) L. | 1481 images |
| Polygala cruciata L. | 9 images |
| Polygala curtissii A.Gray | 43 images |
| Polygala cymosa Walter | 2 images |
| Polygala lutea L. | 101 images |
| Polygala mariana Mill. | 3 images |
| Polygala paniculata L. | 203 images |
| Polygala polygama Walter | 33 images |
| Polygala rugelii Shuttlew. ex A.Gray | 13 images |
| Polygala sanguinea L. | 69 images |
| Polygala senega L. | 30 images |
| Polygala setacea Michx. | 1 images |
| Polygala verticillata L. | 5 images |
| Polygaloides paucifolia (Willd.) J.R.Abbott | 203 images |
| Polygonatum biflorum (Walter) Elliott | 842 images |
| Polygonatum pubescens (Willd.) Pursh | 185 images |
| Polygonum arenastrum Boreau | 233 images |
| Polygonum articulatum L. | 1 images |
| Polygonum aviculare L. | 5874 images |
| Polygonum cilinode Michx. | 3 images |
| Polygonum delopyrum T.M.Schust. & Reveal | 1 images |
| Polygonum dentoceras T.M.Schust. & Reveal | 2 images |
| Polygonum douglasii Greene | 5 images |
| Polygonum glaucum Nutt. | 19 images |
| Polygonum nesomii T.M.Schust. & Reveal | 1 images |
| Polygonum patulum M.Bieb. | 4 images |
| Polygonum polygamum Vent. | 1 images |
| Polygonum serotinum Raf. | 1 images |
| Polygonum smallianum T.M.Schust. & Reveal | 1 images |
| Polygonum tenerum Spreng. | 37 images |
| Polygonum tenue Michx. | 3 images |
| Polymnia canadensis L. | 158 images |
| Polypodium appalachianum Haufler & Windham | 1 images |
| Polypodium virginianum L. | 313 images |
| Polypogon maritimus Willd. | 45 images |
| Polypogon monspeliensis (L.) Desf. | 944 images |
| Polypogon viridis (Gouan) Breistr. | 274 images |
| Polypremum procumbens L. | 106 images |
| Polystachya concreta (Jacq.) Garay & H.R.Sweet | 177 images |
| Polystichum acrostichoides (Michx.) Schott | 692 images |
| Polystichum luctuosum (Kunze) T.Moore | 60 images |
| Polystichum polyblepharon (Roem. ex Kunze) C.Presl | 60 images |
| Polytaenia nuttallii DC. | 16 images |
| Polytrias indica (Houtt.) Veldkamp | 5 images |
| Pombalia parviflora (L.f.) Paula-Souza | 2 images |
| Pontederia azurea Sw. | 35 images |
| Pontederia cordata L. | 1858 images |
| Pontederia crassipes Mart. | 1853 images |
| Pontederia paniculata Spreng. | 8 images |
| Ponthieva racemosa (Walter) C.Mohr | 14 images |
| Populus × canescens (Aiton) Sm. | 2783 images |
| Populus × tomentosa Carrière | 24 images |
| Populus alba L. | 13035 images |
| Populus balsamifera L. | 2016 images |
| Populus deltoides W.Bartram ex Marshall | 1000 images |
| Populus grandidentata Michx. | 343 images |
| Populus heterophylla L. | 25 images |
| Populus nigra L. | 15068 images |
| Populus tremuloides Michx. | 1639 images |
| Poranopsis paniculata (Roxb.) Roberty | 15 images |
| Portulaca amilis Speg. | 12 images |
| Portulaca grandiflora Hook. | 8245 images |
| Portulaca oleracea L. | 14165 images |
| Portulaca pilosa L. | 891 images |
| Portulaca rubricaulis Kunth | 17 images |
| Portulaca umbraticola Kunth | 2141 images |
| Potamogeton × nitens Weber | 2 images |
| Potamogeton amplifolius Tuck. | 8 images |
| Potamogeton berchtoldii Fieber | 26 images |
| Potamogeton crispus L. | 195 images |
| Potamogeton diversifolius Raf. | 1 images |
| Potamogeton epihydrus Raf. | 4 images |
| Potamogeton foliosus Raf. | 5 images |
| Potamogeton gramineus L. | 49 images |
| Potamogeton nodosus Poir. | 351 images |
| Potamogeton perfoliatus L. | 199 images |
| Potamogeton pusillus L. | 45 images |
| Potentilla argentea L. | 3153 images |
| Potentilla canadensis L. | 110 images |
| Potentilla inclinata Vill. | 70 images |
| Potentilla indica (Andrews) Th.Wolf | 6161 images |
| Potentilla intermedia L. | 119 images |
| Potentilla norvegica L. | 898 images |
| Potentilla recta L. | 3966 images |
| Potentilla reptans L. | 11604 images |
| Potentilla simplex Michx. | 538 images |
| Potentilla supina L. | 212 images |
| Pourthiaea villosa (Thunb.) Decne. | 88 images |
| Pouteria campechiana (Kunth) Baehni | 250 images |
| Pouzolzia zeylanica (L.) Benn. | 9 images |
| Premna odorata Blanco | 4 images |
| Primula meadia (L.) A.R.Mast & Reveal | 290 images |
| Priva lappulacea (L.) Pers. | 389 images |
| Proboscidea louisianica (Mill.) Thell. | 277 images |
| Prosartes lanuginosa (Michx.) D.Don | 23 images |
| Prosartes maculata (Buckley) A.Gray | 13 images |
| Proserpinaca palustris L. | 4 images |
| Proserpinaca pectinata Lam. | 2 images |
| Prosopis glandulosa Torr. | 510 images |
| Prosthechea boothiana (Lindl.) W.E.Higgins | 5 images |
| Prosthechea cochleata (L.) W.E.Higgins | 194 images |
| Prosthechea pygmaea (Hook.) W.E.Higgins | 19 images |
| Prunella laciniata (L.) L. | 2062 images |
| Prunella vulgaris L. | 23521 images |
| Prunus × subhirtella Miq. | 2367 images |
| Prunus × yedoensis Matsum. | 1752 images |
| Prunus americana Marshall | 93 images |
| Prunus angustifolia Marshall | 3 images |
| Prunus armeniaca L. | 6356 images |
| Prunus avium (L.) L. | 21565 images |
| Prunus campanulata Maxim. | 168 images |
| Prunus caroliniana (Mill.) Aiton | 200 images |
| Prunus cerasifera Ehrh. | 24176 images |
| Prunus cerasus L. | 12230 images |
| Prunus domestica L. | 19085 images |
| Prunus glandulosa Thunb. | 315 images |
| Prunus mahaleb L. | 7411 images |
| Prunus maritima Marshall | 39 images |
| Prunus mexicana S.Watson | 18 images |
| Prunus myrtifolia (L.) Urb. | 21 images |
| Prunus nigra Aiton | 6 images |
| Prunus padus L. | 14775 images |
| Prunus pensylvanica L.f. | 652 images |
| Prunus persica (L.) Batsch | 11530 images |
| Prunus pumila L. | 43 images |
| Prunus rivularis Scheele | 31 images |
| Prunus serotina Ehrh. | 9630 images |
| Prunus speciosa (Koidz.) Nakai | 4 images |
| Prunus susquehanae Willd. | 6 images |
| Prunus tomentosa Thunb. | 435 images |
| Prunus umbellata Elliott | 47 images |
| Prunus virginiana L. | 3803 images |
| Psammophiliella muralis (L.) Ikonn. | 669 images |
| Pseudelephantopus spicatus (Juss. ex Aubl.) C.F.Baker | 93 images |
| Pseuderanthemum variabile (R.Br.) Radlk. | 137 images |
| Pseudognaphalium luteoalbum (L.) Hilliard & B.L.Burtt | 1453 images |
| Pseudognaphalium obtusifolium (L.) Hilliard & B.L.Burtt | 106 images |
| Pseudognaphalium stramineum (Kunth) Anderb. | 121 images |
| Pseudogynoxys chenopodioides (Kunth) Cabrera | 237 images |
| Pseudophoenix sargentii H.Wendl. ex Sarg. | 67 images |
| Pseudosasa japonica (Siebold & Zucc. ex Steud.) Makino ex Nakai | 117 images |
| Psidium cattleyanum Sabine | 1946 images |
| Psidium guajava L. | 4252 images |
| Psilotum nudum (L.) P.Beauv. | 209 images |
| Psophocarpus tetragonolobus (L.) DC. | 101 images |
| Psychotria ligustrifolia (Northr.) Millsp. | 2 images |
| Psychotria nervosa Sw. | 275 images |
| Psychotria tenuifolia Sw. | 10 images |
| Ptelea trifoliata L. | 562 images |
| Pteridium caudatum (L.) Maxon | 66 images |
| Pteris cretica L. | 1029 images |
| Pteris grandifolia L. | 8 images |
| Pteris longifolia L. | 42 images |
| Pteris multifida Poir. | 24 images |
| Pteris parkeri J.J.Parker | 6 images |
| Pteris plumieri Link | 1 images |
| Pteris tripartita Sw. | 78 images |
| Pteris vittata L. | 609 images |
| Pterocaulon pycnostachyum Elliott | 31 images |
| Pterocaulon virgatum (L.) DC. | 9 images |
| Pterygota alata (Roxb.) R.Br. | 55 images |
| Ptilimnium nuttallii (DC.) Britton | 6 images |
| Ptychosperma elegans (R.Br.) Blume | 39 images |
| Puccinellia distans (Jacq.) Parl. | 107 images |
| Puccinellia fasciculata (Torr.) E.P.Bicknell | 13 images |
| Puccinellia maritima (Huds.) Parl. | 61 images |
| Pueraria montana (Lour.) Merr. | 489 images |
| Pulicaria dysenterica (L.) Bernh. | 5595 images |
| Punica granatum L. | 16145 images |
| Pycnanthemum albescens Torr. & A.Gray | 2 images |
| Pycnanthemum curvipes (Greene) E.Grant & Epling | 1 images |
| Pycnanthemum flexuosum (Walter) Britton, Sterns & Poggenb. | 1 images |
| Pycnanthemum incanum (L.) Michx. | 130 images |
| Pycnanthemum muticum (Michx.) Pers. | 179 images |
| Pycnanthemum pycnanthemoides (Leavenw.) Fernald | 5 images |
| Pycnanthemum tenuifolium Schrad. | 344 images |
| Pycnanthemum verticillatum (Michx.) Pers. | 106 images |
| Pycnanthemum virginianum (L.) T.Durand & B.D.Jacks. ex B.L.Rob. & Fernald | 20 images |
| Pyracantha coccinea M.Roem. | 16721 images |
| Pyracantha crenulata (D.Don) M.Roem. | 2329 images |
| Pyracantha koidzumii (Hayata) Rehder | 992 images |
| Pyrola americana G.Don | 33 images |
| Pyrola chlorantha Sw. | 392 images |
| Pyrola elliptica Nutt. | 176 images |
| Pyrrhopappus carolinianus (Walter) DC. | 302 images |
| Pyrus calleryana Decne. | 5502 images |
| Pyrus communis L. | 11470 images |
| Pyrus nivalis Jacq. | 41 images |
| Pyrus pyrifolia (Burm.f.) Nakai | 595 images |
| Pyxidanthera barbulata Michx. | 5 images |
| Quercus × heterophylla F.Michx. | 8 images |
| Quercus × leana Nutt. | 6 images |
| Quercus × ludoviciana Sarg. | 1 images |
| Quercus × schochiana Dieck | 1 images |
| Quercus acerifolia (E.J.Palmer) Stoynoff & W.J.Hess ex R.J.Jensen | 3 images |
| Quercus acutissima Carruth. | 349 images |
| Quercus alba L. | 1018 images |
| Quercus arkansana Sarg. | 17 images |
| Quercus austrina Small | 11 images |
| Quercus bicolor Willd. | 938 images |
| Quercus boyntonii Beadle | 2 images |
| Quercus coccinea Münchh. | 193 images |
| Quercus falcata Michx. | 94 images |
| Quercus geminata Small | 28 images |
| Quercus georgiana M.A.Curtis | 5 images |
| Quercus hemisphaerica W.Bartram ex Willd. | 6 images |
| Quercus ilicifolia Wangenh. | 75 images |
| Quercus imbricaria Michx. | 305 images |
| Quercus laevis Walter | 11 images |
| Quercus laurifolia Michx. | 82 images |
| Quercus lyrata Walter | 23 images |
| Quercus macrocarpa Michx. | 1582 images |
| Quercus marilandica (L.) Münchh. | 111 images |
| Quercus michauxii Nutt. | 236 images |
| Quercus montana Willd. | 21 images |
| Quercus muehlenbergii Engelm. | 125 images |
| Quercus myrtifolia Willd. | 3 images |
| Quercus nigra L. | 1233 images |
| Quercus oglethorpensis W.H.Duncan | 4 images |
| Quercus pagoda Raf. | 9 images |
| Quercus palustris Münchh. | 4602 images |
| Quercus phellos L. | 973 images |
| Quercus prinoides Willd. | 4 images |
| Quercus pumila Walter | 1 images |
| Quercus robur L. | 19228 images |
| Quercus rubra L. | 12775 images |
| Quercus shumardii Buckley | 117 images |
| Quercus similis Ashe | 1 images |
| Quercus sinuata Walter | 14 images |
| Quercus stellata Wangenh. | 171 images |
| Quercus texana Buckley | 45 images |
| Quercus velutina Lam. | 2099 images |
| Quercus virginiana Mill. | 684 images |
| Rabelera holostea (L.) M.T.Sharples & E.A.Tripp | 11492 images |
| Randia aculeata L. | 91 images |
| Ranunculus abortivus L. | 539 images |
| Ranunculus acris L. | 12880 images |
| Ranunculus ambigens S.Watson | 5 images |
| Ranunculus arvensis L. | 485 images |
| Ranunculus bulbosus L. | 5305 images |
| Ranunculus fascicularis Muhl. ex Bigelow | 74 images |
| Ranunculus ficaria L. | 31385 images |
| Ranunculus flabellaris Raf. | 12 images |
| Ranunculus harveyi (A.Gray) Britton | 8 images |
| Ranunculus hederaceus L. | 182 images |
| Ranunculus hispidus Michx. | 232 images |
| Ranunculus laxicaulis (Torr. & A.Gray) Darby | 1 images |
| Ranunculus micranthus Nutt. | 14 images |
| Ranunculus minimus (L.) E.H.L.Krause | 191 images |
| Ranunculus muricatus L. | 1122 images |
| Ranunculus parviflorus Loefl. | 10 images |
| Ranunculus pensylvanicus L.f. | 2 images |
| Ranunculus pusillus Poir. | 5 images |
| Ranunculus recurvatus Poir. | 257 images |
| Ranunculus repens L. | 15947 images |
| Ranunculus sardous Crantz | 1082 images |
| Ranunculus sceleratus L. | 1582 images |
| Ranunculus trichophyllus Chaix | 562 images |
| Ranunculus trilobus Desf. | 69 images |
| Raphanus raphanistrum L. | 15115 images |
| Rapistrum rugosum (L.) All. | 3418 images |
| Ratibida columnifera (Nutt.) Wooton & Standl. | 532 images |
| Ratibida pinnata (Vent.) Barnhart | 403 images |
| Reseda alba L. | 2105 images |
| Reseda lutea L. | 6766 images |
| Reseda luteola L. | 3417 images |
| Reseda odorata L. | 78 images |
| Reynosia septentrionalis Urb. | 2 images |
| Reynoutria × bohemica Chrtek & Chrtková | 180 images |
| Reynoutria japonica Houtt. | 11902 images |
| Reynoutria sachalinensis (F.Schmidt) Nakai | 2952 images |
| Rhabdadenia biflora (Jacq.) Müll.Arg. | 25 images |
| Rhamnus cathartica L. | 6174 images |
| Rhamnus davurica Pall. | 1 images |
| Rhamphospermum arvense (L.) Andrz. ex Besser | 10778 images |
| Rhamphospermum nigrum (L.) Al-Shehbaz | 1027 images |
| Rhaphiolepis bibas (Lour.) Galasso & Banfi | 13275 images |
| Rhapidophyllum hystrix (Fraser ex Thouin) H.Wendl. & Drude | 66 images |
| Rheum rhabarbarum L. | 657 images |
| Rhexia alifanus Walter | 21 images |
| Rhexia cubensis Griseb. | 5 images |
| Rhexia lutea Walter | 1 images |
| Rhexia mariana L. | 221 images |
| Rhexia nashii Small | 1 images |
| Rhexia nuttallii C.W.James | 1 images |
| Rhexia petiolata Walter | 1 images |
| Rhexia virginica L. | 135 images |
| Rhipsalis baccifera (J.S.Muell.) Stearn | 2193 images |
| Rhipsalis cereuscula Haw. | 660 images |
| Rhizophora mangle L. | 657 images |
| Rhodiola rosea L. | 987 images |
| Rhododendron alabamense Rehder | 522 images |
| Rhododendron arborescens (Pursh) Torr. | 118 images |
| Rhododendron atlanticum (Ashe) Rehder | 37 images |
| Rhododendron austrinum (Small) Rehder | 16 images |
| Rhododendron calendulaceum (Michx.) Torr. | 3413 images |
| Rhododendron canescens (Michx.) Sweet | 192 images |
| Rhododendron catawbiense Michx. | 2409 images |
| Rhododendron eastmanii Kron & Creel | 3 images |
| Rhododendron maximum L. | 6907 images |
| Rhododendron minus Michx. | 55 images |
| Rhododendron periclymenoides (Michx.) Shinners | 274 images |
| Rhododendron pilosum (Michx. ex Lam.) Craven | 2 images |
| Rhododendron prunifolium (Small) Millais | 14 images |
| Rhododendron roseum (Loisel.) Rehder | 429 images |
| Rhododendron vaseyi A.Gray | 125 images |
| Rhododendron viscosum (L.) Torr. | 161 images |
| Rhodomyrtus tomentosa (Aiton) Hassk. | 87 images |
| Rhodotypos scandens (Thunb.) Makino | 896 images |
| Rhus aromatica Aiton | 763 images |
| Rhus copallinum L. | 1043 images |
| Rhus glabra L. | 2277 images |
| Rhus trilobata Nutt. | 29 images |
| Rhus typhina L. | 11916 images |
| Rhynchosia minima (L.) DC. | 378 images |
| Rhynchosia reniformis DC. | 1 images |
| Rhynchosia reticulata (Sw.) DC. | 10 images |
| Rhynchospora alba (L.) Vahl | 232 images |
| Rhynchospora caduca Elliott | 1 images |
| Rhynchospora capitellata (Michx.) Vahl | 4 images |
| Rhynchospora colorata (L.) H.Pfeiff. | 170 images |
| Rhynchospora contracta (Nees) J.Raynal | 4 images |
| Rhynchospora corniculata (Lam.) A.Gray | 1 images |
| Rhynchospora eximia (Nees) Boeckeler | 4 images |
| Rhynchospora fascicularis (Michx.) Vahl | 9 images |
| Rhynchospora fusca (L.) W.T.Aiton | 58 images |
| Rhynchospora glomerata (L.) Vahl | 1 images |
| Rhynchospora latifolia (Baldwin ex Elliott) W.W.Thomas | 14 images |
| Rhynchospora perplexa Britton | 1 images |
| Ribes americanum Mill. | 125 images |
| Ribes aureum Pursh | 1896 images |
| Ribes cynosbati L. | 331 images |
| Ribes glandulosum Weber | 17 images |
| Ribes hirtellum Michx. | 9 images |
| Ribes lacustre (Pers.) Poir. | 113 images |
| Ribes missouriense Nutt. | 85 images |
| Ribes nigrum L. | 3388 images |
| Ribes rubrum L. | 6083 images |
| Ribes triste Pall. | 15 images |
| Ribes uva-crispa L. | 3571 images |
| Richardia brasiliensis Gomes | 275 images |
| Richardia grandiflora (Cham. & Schltdl.) Steud. | 11 images |
| Richardia scabra L. | 680 images |
| Richardia tricocca (Torr. & A.Gray) Standl. | 1 images |
| Ricinus communis L. | 12891 images |
| Ripariosida hermaphrodita (L.) Weakley & D.B.Poind. | 74 images |
| Rivina humilis L. | 1235 images |
| Robinia × ambigua Poir. | 9 images |
| Robinia × margaretiae Ashe | 3 images |
| Robinia hispida L. | 1735 images |
| Robinia pseudoacacia L. | 24035 images |
| Robinia viscosa Michx. ex Vent. | 3008 images |
| Roemeria argemone (L.) C.Morales, R.Mend. & Romero García | 1483 images |
| Roemeria sicula (Guss.) ined. | 974 images |
| Rorippa aquatica (Eaton) E.J.Palmer & Steyerm. | 1 images |
| Rorippa austriaca (Crantz) Besser | 200 images |
| Rorippa curvipes Greene | 10 images |
| Rorippa dubia (Pers.) H.Hara | 13 images |
| Rorippa indica (L.) Hiern | 1 images |
| Rorippa palustris (L.) Besser | 1177 images |
| Rorippa sylvestris (L.) Besser | 2500 images |
| Rosa arkansana Porter | 110 images |
| Rosa bracteata J.C.Wendl. | 51 images |
| Rosa canina L. | 22330 images |
| Rosa carolina L. | 57 images |
| Rosa chinensis Jacq. | 26624 images |
| Rosa gallica L. | 12073 images |
| Rosa glauca Pourr. | 1033 images |
| Rosa laevigata Michx. | 65 images |
| Rosa lucieae Franch. & Rochebr. ex Crép. | 3703 images |
| Rosa micrantha Borrer ex Sm. | 1386 images |
| Rosa multiflora Thunb. | 6219 images |
| Rosa palustris Marshall | 79 images |
| Rosa pendulina L. | 9096 images |
| Rosa rubiginosa L. | 5012 images |
| Rosa rugosa Thunb. | 11168 images |
| Rosa setigera Michx. | 520 images |
| Rosa spinosissima L. | 4851 images |
| Rosa tomentosa Sm. | 274 images |
| Rosa virginiana Mill. | 176 images |
| Rostraria cristata (L.) Tzvelev | 730 images |
| Rotala indica (Willd.) Koehne | 4 images |
| Rotala ramosior (L.) Koehne | 9 images |
| Rotala rotundifolia (Buch.-Ham. ex Roxb.) Koehne | 27 images |
| Rotanthella floridana (S.Watson ex A.Gray) Morin | 4 images |
| Rottboellia campestris Nutt. | 1 images |
| Rottboellia cochinchinensis (Lour.) Clayton | 32 images |
| Roystonea regia (Kunth) O.F.Cook | 795 images |
| Rubus allegheniensis Porter | 75 images |
| Rubus argutus Link | 2507 images |
| Rubus armeniacus Focke | 1865 images |
| Rubus bifrons Vest | 3 images |
| Rubus caesius L. | 7610 images |
| Rubus canadensis L. | 309 images |
| Rubus cuneifolius Pursh | 1 images |
| Rubus flagellaris Willd. | 48 images |
| Rubus hispidus L. | 134 images |
| Rubus idaeus L. | 8015 images |
| Rubus illecebrosus Focke | 86 images |
| Rubus nemoralis P.J.Müll. | 1230 images |
| Rubus niveus Thunb. | 280 images |
| Rubus occidentalis L. | 3780 images |
| Rubus odoratus L. | 1746 images |
| Rubus parvifolius L. | 14 images |
| Rubus pensilvanicus Poir. | 48 images |
| Rubus phoenicolasius Maxim. | 2072 images |
| Rubus setosus Bigelow | 8 images |
| Rubus trivialis Michx. | 73 images |
| Rudbeckia amplexicaulis Vahl | 22 images |
| Rudbeckia auriculata (Perdue) Kral | 3 images |
| Rudbeckia fulgida Aiton | 8442 images |
| Rudbeckia grandiflora (Sweet) C.C.Gmel. ex DC. | 4 images |
| Rudbeckia hirta L. | 6173 images |
| Rudbeckia laciniata L. | 3015 images |
| Rudbeckia maxima Nutt. | 109 images |
| Rudbeckia missouriensis Engelm. ex C.L.Boynton & Beadle | 7 images |
| Rudbeckia nitida Nutt. | 197 images |
| Rudbeckia subtomentosa Pursh | 151 images |
| Rudbeckia triloba L. | 1515 images |
| Ruellia blechum L. | 231 images |
| Ruellia caroliniensis (J.F.Gmel.) Steud. | 8 images |
| Ruellia ciliatiflora Hook. | 254 images |
| Ruellia humilis Nutt. | 650 images |
| Ruellia pedunculata Torr. ex A.Gray | 37 images |
| Ruellia purshiana Fernald | 2 images |
| Ruellia simplex C.Wright | 4916 images |
| Ruellia strepens L. | 145 images |
| Rumex × acutus L. | 2221 images |
| Rumex acetosella L. | 5815 images |
| Rumex altissimus Alph.Wood | 13 images |
| Rumex brownii Campd. | 256 images |
| Rumex bucephalophorus L. | 774 images |
| Rumex conglomeratus Murray | 3367 images |
| Rumex crispus L. | 10552 images |
| Rumex obovatus Danser | 3 images |
| Rumex obtusifolius L. | 13736 images |
| Rumex patientia L. | 3477 images |
| Rumex pulcher L. | 2581 images |
| Rumex sanguineus L. | 1723 images |
| Rumex spinosus L. | 429 images |
| Rumex stenophyllus Ledeb. | 1 images |
| Rumex verticillatus L. | 31 images |
| Rumohra adiantiformis (G.Forst.) Ching | 47 images |
| Ruppia maritima L. | 30 images |
| Russelia equisetiformis Schltdl. & Cham. | 2879 images |
| Ruta graveolens L. | 3678 images |
| Sabal etonia Swingle ex Nash | 4 images |
| Sabal minor (Jacq.) Pers. | 356 images |
| Sabal palmetto (Walter) Lodd. ex Schult. & Schult.f. | 424 images |
| Sabatia angularis (L.) Pursh | 182 images |
| Sabatia brevifolia Raf. | 16 images |
| Sabatia calycina (Lam.) A.Heller | 1 images |
| Sabatia campanulata (L.) Torr. | 2 images |
| Sabatia campestris Nutt. | 143 images |
| Sabatia difformis (L.) Druce | 1 images |
| Sabatia gentianoides Elliott | 8 images |
| Sabatia grandiflora (A.Gray) Small | 14 images |
| Sabatia kennedyana Fernald | 1 images |
| Sabatia stellaris Pursh | 20 images |
| Sabulina michauxii (Fenzl) Dillenb. & Kadereit | 7 images |
| Saccharum officinarum L. | 1092 images |
| Saccharum spontaneum L. | 76 images |
| Sacciolepis indica (L.) Chase | 14 images |
| Sacciolepis striata (L.) Nash | 3 images |
| Sacoila lanceolata (Aubl.) Garay | 66 images |
| Sageretia minutiflora (Michx.) Trel. | 1 images |
| Sagina apetala Ard. | 242 images |
| Sagina procumbens L. | 1103 images |
| Sagittaria graminea Michx. | 85 images |
| Sagittaria guayanensis Kunth | 44 images |
| Sagittaria isoetiformis J.G.Sm. | 2 images |
| Sagittaria lancifolia L. | 99 images |
| Sagittaria latifolia Willd. | 827 images |
| Sagittaria montevidensis Cham. & Schltdl. | 176 images |
| Sagittaria rigida Pursh | 9 images |
| Sagittaria subulata (L.) Buchenau | 10 images |
| Salicornia bigelovii Torr. | 32 images |
| Salicornia virginica L. | 11 images |
| Salix × fragilis L. | 98 images |
| Salix alba L. | 11131 images |
| Salix amygdaloides Andersson | 33 images |
| Salix atrocinerea Brot. | 4341 images |
| Salix babylonica L. | 6887 images |
| Salix bebbiana Sarg. | 48 images |
| Salix caprea L. | 13292 images |
| Salix caroliniana Michx. | 43 images |
| Salix cinerea L. | 6427 images |
| Salix discolor Muhl. | 497 images |
| Salix eleagnos Scop. | 3152 images |
| Salix eriocephala Michx. | 103 images |
| Salix exigua Nutt. | 276 images |
| Salix humilis Marshall | 20 images |
| Salix interior Rowlee | 8 images |
| Salix lasiandra Benth. | 3 images |
| Salix lucida Muhl. | 79 images |
| Salix nigra Marshall | 182 images |
| Salix pentandra L. | 1374 images |
| Salix purpurea L. | 3668 images |
| Salix sericea Marshall | 11 images |
| Salix triandra L. | 2275 images |
| Salpichroa origanifolia (Lam.) Baill. | 1215 images |
| Salsola collina Pall. | 1 images |
| Salsola kali L. | 613 images |
| Salsola tragus L. | 68 images |
| Salvia × sylvestris L. | 1628 images |
| Salvia azurea Michx. ex Vahl | 103 images |
| Salvia coccinea Buc'hoz ex Etl. | 1011 images |
| Salvia farinacea Benth. | 5877 images |
| Salvia hispanica L. | 948 images |
| Salvia lyrata L. | 868 images |
| Salvia misella Kunth | 12 images |
| Salvia occidentalis Sw. | 38 images |
| Salvia officinalis L. | 12666 images |
| Salvia pratensis L. | 17405 images |
| Salvia reflexa Hornem. | 34 images |
| Salvia sclarea L. | 4494 images |
| Salvia serotina L. | 3 images |
| Salvia splendens Sellow ex Nees | 1975 images |
| Salvia urticifolia L. | 6 images |
| Salvia verbenaca L. | 6389 images |
| Salvia verticillata L. | 2151 images |
| Salvinia minima Baker | 70 images |
| Salvinia molesta D.Mitch. | 48 images |
| Sambucus canadensis L. | 5922 images |
| Sambucus nigra L. | 29991 images |
| Sambucus racemosa L. | 9690 images |
| Samolus ebracteatus Kunth | 14 images |
| Samolus parviflorus Raf. | 2 images |
| Sanguinaria canadensis L. | 1704 images |
| Sanguisorba canadensis L. | 200 images |
| Sanguisorba minor Scop. | 9365 images |
| Sanicula canadensis L. | 525 images |
| Sanicula marilandica L. | 34 images |
| Sanicula odorata (Raf.) Pryer & Phillippe | 1 images |
| Sanicula trifoliata E.P.Bicknell | 1 images |
| Santalum album L. | 150 images |
| Santolina chamaecyparissus L. | 7429 images |
| Sanvitalia procumbens Lam. | 1733 images |
| Sapindus mukorossi Gaertn. | 34 images |
| Sapindus saponaria L. | 649 images |
| Saponaria officinalis L. | 18329 images |
| Sarracenia × catesbaei Elliott | 1 images |
| Sarracenia × farnhamii Rob. | 3 images |
| Sarracenia × moorei T.Moore & Mast. | 5 images |
| Sarracenia × swaniana Rob. | 4 images |
| Sarracenia alata (Alph.Wood) Alph.Wood | 13 images |
| Sarracenia flava L. | 530 images |
| Sarracenia leucophylla Raf. | 508 images |
| Sarracenia minor Walter | 57 images |
| Sarracenia oreophila (Kearney) Wherry | 15 images |
| Sarracenia psittacina Michx. | 119 images |
| Sarracenia purpurea L. | 1365 images |
| Sarracenia rosea Naczi, F.W.Case & R.B.Case | 8 images |
| Sarracenia rubra Walter | 95 images |
| Sassafras albidum (Nutt.) Nees | 1708 images |
| Saururus cernuus L. | 410 images |
| Saxifraga tridactylites L. | 1483 images |
| Scaevola plumieri (L.) Vahl | 313 images |
| Scaevola taccada (Gaertn.) Roxb. | 1209 images |
| Scandix pecten-veneris L. | 2932 images |
| Schenkia spicata (L.) G.Mans. | 4 images |
| Schinus molle L. | 7288 images |
| Schinus terebinthifolia Raddi | 2984 images |
| Schizachyrium sanguineum (Retz.) Alston | 3 images |
| Schizachyrium scoparium (Michx.) Nash | 96 images |
| Schkuhria pinnata (Lam.) Kuntze ex Thell. | 69 images |
| Schoenocaulon dubium (Michx.) Small | 2 images |
| Schoenolirion croceum (Michx.) Alph.Wood | 5 images |
| Schoenoplectiella erecta (Poir.) Lye | 1 images |
| Schoenoplectiella hallii (A.Gray) Lye | 1 images |
| Schoenoplectiella mucronata (L.) J.Jung & H.K.Choi | 39 images |
| Schoenoplectiella purshiana (Fernald) Lye | 4 images |
| Schoenoplectus californicus (C.A.Mey.) Soják | 47 images |
| Schoenoplectus pungens (Vahl) Palla | 70 images |
| Schoenoplectus tabernaemontani (C.C.Gmel.) Palla | 91 images |
| Schoenus nigricans L. | 452 images |
| Schoepfia schreberi J.F.Gmel. | 39 images |
| Scilla hyacinthoides L. | 199 images |
| Scilla siberica Andrews | 2433 images |
| Scirpoides holoschoenus (L.) Soják | 1560 images |
| Scirpus atrovirens Willd. | 217 images |
| Scirpus cyperinus (L.) Kunth | 156 images |
| Scirpus expansus Fernald | 3 images |
| Scirpus hattorianus Makino | 12 images |
| Scirpus microcarpus J.Presl & C.Presl | 4 images |
| Scirpus pendulus Muhl. | 32 images |
| Scirpus polyphyllus Vahl | 5 images |
| Scleranthus annuus L. | 323 images |
| Scleria distans Poir. | 3 images |
| Scleria gaertneri Raddi | 89 images |
| Scleria lacustris C.Wright | 1 images |
| Scleria lithosperma (L.) Sw. | 10 images |
| Sclerochloa dura (L.) P.Beauv. | 64 images |
| Scolymus hispanicus L. | 4043 images |
| Scolymus maculatus L. | 268 images |
| Scoparia dulcis L. | 370 images |
| Scorzoneroides autumnalis (L.) Moench | 3467 images |
| Scrophularia lanceolata Pursh | 19 images |
| Scrophularia marilandica L. | 59 images |
| Scutellaria alabamensis Alexander | 39 images |
| Scutellaria drummondii Benth. | 52 images |
| Scutellaria galericulata L. | 1521 images |
| Scutellaria havanensis Jacq. | 2 images |
| Scutellaria incana Biehler | 105 images |
| Scutellaria integrifolia L. | 97 images |
| Scutellaria lateriflora L. | 111 images |
| Scutellaria minor Huds. | 151 images |
| Scutellaria nervosa Pursh | 1 images |
| Scutellaria ocmulgee Small | 3 images |
| Scutellaria ovata Hill | 81 images |
| Scutellaria parvula Michx. | 34 images |
| Scutellaria racemosa Pers. | 55 images |
| Scutellaria saxatilis Riddell | 1 images |
| Scutellaria serrata Andrews | 26 images |
| Secale cereale L. | 3669 images |
| Sedum acre L. | 8190 images |
| Sedum diffusum S.Watson | 22 images |
| Sedum glaucophyllum R.T.Clausen | 53 images |
| Sedum lineare Thunb. | 549 images |
| Sedum mexicanum Britton | 829 images |
| Sedum nevii A.Gray | 4 images |
| Sedum pulchellum Michx. | 50 images |
| Sedum sarmentosum Bunge | 876 images |
| Sedum ternatum Michx. | 367 images |
| Selaginella apoda (L.) Spring | 20 images |
| Selaginella braunii Baker | 3 images |
| Selaginella kraussiana (Kunze) A.Braun | 247 images |
| Selaginella plana (Desv.) Hieron. | 5 images |
| Selaginella uncinata (Desv.) Spring | 2 images |
| Selaginella willdenowii (Desv.) Baker | 5 images |
| Selenia aurea Nutt. | 1 images |
| Selenicereus grandiflorus (L.) Britton & Rose | 333 images |
| Selenicereus pteranthus (Link ex A.Dietr.) Britton & Rose | 11 images |
| Selenicereus undatus (Haw.) D.R.Hunt | 2923 images |
| Sempervivum tectorum L. | 12233 images |
| Senecio sylvaticus L. | 2525 images |
| Senecio vulgaris L. | 9897 images |
| Senna alata (L.) Roxb. | 1095 images |
| Senna corymbosa (Lam.) H.S.Irwin & Barneby | 953 images |
| Senna hebecarpa (Fernald) H.S.Irwin & Barneby | 20 images |
| Senna marilandica (L.) Link | 243 images |
| Senna obtusifolia (L.) H.S.Irwin & Barneby | 542 images |
| Senna occidentalis (L.) Link | 1589 images |
| Senna pendula (Humb. & Bonpl. ex Willd.) H.S.Irwin & Barneby | 221 images |
| Senna tora (L.) Roxb. | 251 images |
| Serenoa repens (W.Bartram) Small | 214 images |
| Sericocarpus asteroides (L.) Britton, Sterns & Poggenb. | 20 images |
| Sericocarpus linifolius Britton, Sterns & Poggenb. | 5 images |
| Sericocarpus tortifolius Nees | 16 images |
| Serpocaulon triseriale (Sw.) A.R.Sm. | 43 images |
| Sesamum indicum L. | 452 images |
| Sesamum trilobum (Bernh.) Byng & Christenh. | 51 images |
| Sesbania drummondii (Rydb.) Cory | 97 images |
| Sesbania grandiflora (L.) Poir. | 47 images |
| Sesbania herbacea (Mill.) McVaugh | 132 images |
| Sesbania punicea (Cav.) Benth. | 506 images |
| Sesbania sericea (Willd.) Link | 8 images |
| Sesbania vesicaria (Jacq.) Elliott | 15 images |
| Sesbania virgata (Cav.) Poir. | 11 images |
| Seseli libanotis (L.) W.D.J.Koch | 635 images |
| Sesuvium crithmoides Welw. | 1 images |
| Sesuvium humifusum (Turpin) Bohley & G.Kadereit | 1 images |
| Sesuvium maritimum (Walter) Britton, Sterns & Poggenb. | 1 images |
| Sesuvium portulacastrum (L.) L. | 991 images |
| Sesuvium revolutifolium Ortega | 41 images |
| Setaria adhaerens (Forssk.) Chiov. | 14 images |
| Setaria barbata (Lam.) Kunth | 54 images |
| Setaria faberi R.A.W.Herrm. | 34 images |
| Setaria geminata (Forssk.) Veldkamp | 12 images |
| Setaria italica (L.) P.Beauv. | 1631 images |
| Setaria leucopila (Scribn. & Merr.) K.Schum. | 3 images |
| Setaria macrostachya Kunth | 5 images |
| Setaria magna Griseb. | 4 images |
| Setaria megaphylla (Steud.) T.Durand & Schinz | 1 images |
| Setaria palmifolia (J.Koenig) Stapf | 175 images |
| Setaria parviflora (Poir.) Kerguélen | 221 images |
| Setaria pumila (Poir.) Roem. & Schult. | 3420 images |
| Setaria sphacelata (Schumach.) Stapf & C.E.Hubb. ex Moss | 289 images |
| Setaria verticillata (L.) P.Beauv. | 1601 images |
| Setaria viridis (L.) P.Beauv. | 273 images |
| Setaria vulpiseta (Lam.) Roem. & Schult. | 19 images |
| Seymeria cassioides (J.F.Gmel.) S.F.Blake | 7 images |
| Seymeria pectinata Pursh | 3 images |
| Sherardia arvensis L. | 4416 images |
| Shortia galacifolia Torr. & A.Gray | 8 images |
| Sibbaldia tridentata (Aiton) Paule & Soják | 63 images |
| Sicyos angulatus L. | 469 images |
| Sida acuta Burm.f. | 996 images |
| Sida ciliaris L. | 114 images |
| Sida cordifolia L. | 252 images |
| Sida elliottii Torr. & A.Gray | 2 images |
| Sida glabra Mill. | 45 images |
| Sida planicaulis Cav. | 1 images |
| Sida rhombifolia L. | 979 images |
| Sida santaremensis Monteiro | 2 images |
| Sida spinosa L. | 181 images |
| Sida ulmifolia Mill. | 8 images |
| Sida urens L. | 33 images |
| Sideroxylon foetidissimum Jacq. | 42 images |
| Sideroxylon lanuginosum Michx. | 107 images |
| Sideroxylon lycioides L. | 17 images |
| Sideroxylon reclinatum Michx. | 9 images |
| Sideroxylon salicifolium (L.) Lam. | 33 images |
| Sideroxylon tenax L. | 1 images |
| Sigesbeckia orientalis L. | 253 images |
| Sigmoidotropis speciosa (Kunth) A.Delgado | 70 images |
| Silene antirrhina L. | 15 images |
| Silene caroliniana Walter | 27 images |
| Silene conica L. | 600 images |
| Silene coronaria (L.) Clairv. | 7385 images |
| Silene csereii Baumg. | 4 images |
| Silene dichotoma Ehrh. | 1689 images |
| Silene dioica (L.) Clairv. | 18714 images |
| Silene flos-cuculi (L.) Greuter & Burdet | 8020 images |
| Silene gallica L. | 1894 images |
| Silene latifolia Poir. | 20716 images |
| Silene noctiflora L. | 2291 images |
| Silene ovata Pursh | 5 images |
| Silene regia Sims | 102 images |
| Silene rotundifolia Nutt. | 4 images |
| Silene stellata (L.) Coyte | 134 images |
| Silene virginica L. | 333 images |
| Silene vulgaris (Moench) Garcke | 16785 images |
| Silphium asteriscus L. | 88 images |
| Silphium integrifolium Michx. | 136 images |
| Silphium laciniatum L. | 260 images |
| Silphium mohrii Small | 43 images |
| Silphium perfoliatum L. | 1702 images |
| Silphium radula Nutt. | 36 images |
| Silphium terebinthinaceum Jacq. | 238 images |
| Silybum marianum (L.) Gaertn. | 9997 images |
| Simarouba glauca DC. | 43 images |
| Sinapis alba L. | 7080 images |
| Sisymbrium altissimum L. | 381 images |
| Sisymbrium irio L. | 2607 images |
| Sisymbrium loeselii L. | 1654 images |
| Sisymbrium officinale (L.) Scop. | 6295 images |
| Sisyrinchium albidum Raf. | 42 images |
| Sisyrinchium angustifolium Mill. | 1056 images |
| Sisyrinchium langloisii Greene | 58 images |
| Sisyrinchium minus Engelm. & A.Gray | 4 images |
| Sisyrinchium mucronatum Michx. | 5 images |
| Sisyrinchium rosulatum E.P.Bicknell | 282 images |
| Sium suave Walter | 71 images |
| Smallanthus uvedalia (L.) Mack. | 99 images |
| Smilax auriculata Walter | 20 images |
| Smilax bona-nox L. | 847 images |
| Smilax ecirrhata (Engelm. ex Kunth) S.Watson | 2 images |
| Smilax glauca Walter | 69 images |
| Smilax herbacea L. | 238 images |
| Smilax lasioneura Hook. | 13 images |
| Smilax laurifolia L. | 51 images |
| Smilax maritima Feay ex Alph.Wood | 1 images |
| Smilax pumila Walter | 24 images |
| Smilax rotundifolia L. | 971 images |
| Smilax tamnoides L. | 209 images |
| Smilax walteri Pursh | 16 images |
| Smyrnium perfoliatum L. | 1222 images |
| Solanum aculeatissimum Jacq. | 22 images |
| Solanum aethiopicum L. | 202 images |
| Solanum alatum Moench | 3 images |
| Solanum americanum Mill. | 6390 images |
| Solanum angustifolium Mill. | 1 images |
| Solanum bahamense L. | 120 images |
| Solanum capsicoides All. | 96 images |
| Solanum carolinense L. | 1810 images |
| Solanum chenopodioides Lam. | 2473 images |
| Solanum citrullifolium A.Braun | 21 images |
| Solanum deflexum Greenm. | 3 images |
| Solanum dimidiatum Raf. | 184 images |
| Solanum diphyllum L. | 473 images |
| Solanum donianum Walp. | 5 images |
| Solanum dulcamara L. | 16279 images |
| Solanum elaeagnifolium Cav. | 1842 images |
| Solanum erianthum D.Don | 4 images |
| Solanum glaucophyllum Desf. | 45 images |
| Solanum jamaicense Mill. | 54 images |
| Solanum lanceifolium Jacq. | 20 images |
| Solanum lycopersicum L. | 18572 images |
| Solanum mauritianum Scop. | 2001 images |
| Solanum nigrescens M.Martens & Galeotti | 27 images |
| Solanum nigrum L. | 14439 images |
| Solanum nitidibaccatum Bitter | 4 images |
| Solanum pseudocapsicum L. | 3604 images |
| Solanum pseudogracile Heiser | 5 images |
| Solanum pumilum Dunal | 3 images |
| Solanum rostratum Dunal | 596 images |
| Solanum sarrachoides Sendtn. | 5 images |
| Solanum seaforthianum Andrews | 364 images |
| Solanum sisymbriifolium Lam. | 1124 images |
| Solanum tampicense Dunal | 1 images |
| Solanum torvum Sw. | 1472 images |
| Solanum triflorum Nutt. | 76 images |
| Solanum villosum Mill. | 2763 images |
| Solanum virginianum L. | 187 images |
| Solidago altissima L. | 988 images |
| Solidago arguta Aiton | 10 images |
| Solidago bicolor L. | 140 images |
| Solidago caesia L. | 523 images |
| Solidago canadensis L. | 14892 images |
| Solidago drummondii Torr. & A.Gray | 1 images |
| Solidago erecta Banks ex Pursh | 8 images |
| Solidago fistulosa Mill. | 10 images |
| Solidago flexicaulis L. | 410 images |
| Solidago gigantea Aiton | 7752 images |
| Solidago glomerata Michx. | 1 images |
| Solidago hispida Muhl. ex Willd. | 33 images |
| Solidago juncea Aiton | 692 images |
| Solidago latissimifolia Mill. | 2 images |
| Solidago missouriensis Nutt. | 36 images |
| Solidago nemoralis Aiton | 194 images |
| Solidago odora Aiton | 72 images |
| Solidago patula Muhl. ex Willd. | 23 images |
| Solidago petiolaris Aiton | 11 images |
| Solidago pinetorum Small | 8 images |
| Solidago ptarmicoides (Torr. & A.Gray) B.Boivin | 20 images |
| Solidago puberula Nutt. | 37 images |
| Solidago rigida L. | 232 images |
| Solidago rugosa Mill. | 1633 images |
| Solidago sempervirens L. | 105 images |
| Solidago simplex Kunth | 28 images |
| Solidago speciosa Nutt. | 132 images |
| Solidago sphacelata Raf. | 3 images |
| Solidago squarrosa Nutt. | 15 images |
| Solidago stricta Aiton | 8 images |
| Solidago uliginosa Nutt. | 34 images |
| Solidago ulmifolia Muhl. ex Willd. | 88 images |
| Solidago zedia (R.E.Cook & Semple) Semple & J.B.Beck | 1 images |
| Soliva sessilis Ruiz & Pav. | 174 images |
| Soliva stolonifera (Brot.) Loudon | 4 images |
| Sonchus arvensis L. | 6075 images |
| Sonchus asper (L.) Hill | 14706 images |
| Sonchus oleraceus L. | 15097 images |
| Sophora tomentosa L. | 279 images |
| Sorbaria sorbifolia (L.) A.Braun | 3336 images |
| Sorbus americana Marshall | 290 images |
| Sorbus aucuparia L. | 21423 images |
| Sorghastrum nutans (L.) Nash | 196 images |
| Sorghastrum secundum (Elliott) Nash | 2 images |
| Sorghum × drummondii (Nees ex Steud.) Millsp. & Chase | 3 images |
| Sorghum arundinaceum (Desv.) Stapf | 28 images |
| Sorghum bicolor (L.) Moench | 2569 images |
| Sorghum halepense (L.) Pers. | 3496 images |
| Sparganium americanum Nutt. | 39 images |
| Sparganium androcladum (Engelm.) Morong | 3 images |
| Sparganium emersum Rehmann | 207 images |
| Sparganium eurycarpum Engelm. | 51 images |
| Spathoglottis plicata Blume | 1573 images |
| Spergula arvensis L. | 1266 images |
| Spergula morisonii Boreau | 168 images |
| Spergula pentandra L. | 56 images |
| Spergularia echinosperma (Čelak.) Asch. & Graebn. | 31 images |
| Spergularia marina (L.) Besser | 732 images |
| Spergularia media (L.) C.Presl | 367 images |
| Spergularia rubra (L.) J.Presl & C.Presl | 1638 images |
| Spermacoce glabra Michx. | 32 images |
| Spermacoce latifolia Aubl. | 33 images |
| Spermacoce prostrata Aubl. | 43 images |
| Spermacoce remota Lam. | 212 images |
| Spermacoce verticillata L. | 388 images |
| Sphagneticola trilobata (L.) Pruski | 2304 images |
| Sphenoclea zeylanica Gaertn. | 26 images |
| Sphenopholis intermedia (Rydb.) Rydb. | 9 images |
| Sphenopholis obtusata (Michx.) Scribn. | 9 images |
| Spigelia anthelmia L. | 256 images |
| Spigelia marilandica (L.) L. | 206 images |
| Spinacia oleracea L. | 1808 images |
| Spiraea alba Du Roi | 2432 images |
| Spiraea cantoniensis Lour. | 2227 images |
| Spiraea corymbosa Raf. | 2 images |
| Spiraea japonica L.f. | 13268 images |
| Spiraea prunifolia Siebold & Zucc. | 295 images |
| Spiraea salicifolia L. | 662 images |
| Spiraea thunbergii Siebold ex Blume | 2279 images |
| Spiraea tomentosa L. | 875 images |
| Spiranthes brevilabris Lindl. | 1 images |
| Spiranthes cernua (L.) Rich. | 173 images |
| Spiranthes lacera (Raf.) Raf. | 70 images |
| Spiranthes longilabris Lindl. | 1 images |
| Spiranthes lucida (H.H.Eaton) Ames | 12 images |
| Spiranthes magnicamporum Sheviak | 27 images |
| Spiranthes ochroleuca (Rydb.) Rydb. | 6 images |
| Spiranthes odorata (Nutt.) Lindl. | 4 images |
| Spiranthes ovalis Lindl. | 31 images |
| Spiranthes praecox (Walter) S.Watson | 6 images |
| Spiranthes tuberosa Raf. | 3 images |
| Spiranthes vernalis Engelm. & A.Gray | 62 images |
| Spirobassia hirsuta (L.) Freitag & G.Kadereit | 15 images |
| Spirodela oligorrhiza (Kurz) Hegelm. | 1 images |
| Spirodela polyrhiza (L.) Schleid. | 213 images |
| Spirodela punctata (G.Mey.) C.H.Thomps. | 5 images |
| Spondias purpurea L. | 573 images |
| Sporobolus airoides (Torr.) Torr. | 29 images |
| Sporobolus alterniflorus (Loisel.) P.M.Peterson & Saarela | 85 images |
| Sporobolus bakeri (Merr.) P.M.Peterson & Saarela | 1 images |
| Sporobolus cryptandrus (Torr.) A.Gray | 9 images |
| Sporobolus cynosuroides (L.) P.M.Peterson & Saarela | 1 images |
| Sporobolus diandrus (Retz.) P.Beauv. | 4 images |
| Sporobolus fimbriatus (Nees ex Trin.) Nees | 32 images |
| Sporobolus heterolepis (A.Gray) A.Gray | 16 images |
| Sporobolus indicus (L.) R.Br. | 490 images |
| Sporobolus maritimus (Curtis) P.M.Peterson & Saarela | 153 images |
| Sporobolus michauxianus (Hitchc.) P.M.Peterson & Saarela | 83 images |
| Sporobolus neglectus Nash | 2 images |
| Sporobolus pumilus (Roth) P.M.Peterson & Saarela | 58 images |
| Sporobolus pyramidalis P.Beauv. | 267 images |
| Sporobolus pyramidatus (Lam.) Hitchc. | 4 images |
| Sporobolus schoenoides (L.) P.M.Peterson | 88 images |
| Sporobolus tenuissimus (Mart. ex Schrank) Kuntze | 3 images |
| Sporobolus vaginiflorus (Torr. ex A.Gray) Alph.Wood | 8 images |
| Sporobolus virginicus (L.) Kunth | 32 images |
| Stachys annua (L.) L. | 599 images |
| Stachys arvensis (L.) L. | 654 images |
| Stachys byzantina K.Koch | 8738 images |
| Stachys clingmanii Small | 6 images |
| Stachys floridana Shuttlew. ex Benth. | 117 images |
| Stachys germanica L. | 1705 images |
| Stachys palustris L. | 6037 images |
| Stachys pilosa Nutt. | 18 images |
| Stachys recta L. | 4018 images |
| Stachys tenuifolia Willd. | 18 images |
| Stachytarpheta jamaicensis (L.) Vahl | 1490 images |
| Stachytarpheta urticifolia Sims | 143 images |
| Stapfochloa elata (Desv.) P.M.Peterson | 3 images |
| Staphylea trifolia L. | 318 images |
| Steinchisma hians (Elliott) Nash | 4 images |
| Steinchisma laxum (Sw.) Zuloaga | 175 images |
| Stelis gelida (Lindl.) Pridgeon & M.W.Chase | 7 images |
| Stellaria alsine Grimm | 284 images |
| Stellaria apetala Ucria | 183 images |
| Stellaria aquatica (L.) Scop. | 1772 images |
| Stellaria cuspidata Willd. ex D.F.K.Schltdl. | 10 images |
| Stellaria graminea L. | 4982 images |
| Stellaria longifolia Muhl. ex Willd. | 15 images |
| Stellaria longipes Goldie | 26 images |
| Stellaria media (L.) Vill. | 13205 images |
| Stellaria neglecta (Lej.) Weihe | 2 images |
| Stellaria pubera Michx. | 259 images |
| Stemodia durantifolia (L.) Sw. | 72 images |
| Stenandrium dulce (Cav.) Nees | 16 images |
| Stenanthium gramineum (Ker Gawl.) Morong | 22 images |
| Stenaria nigricans (Lam.) Terrell | 110 images |
| Stenochlaena tenuifolia (Desv.) T.Moore | 32 images |
| Stenotaphrum dimidiatum (L.) Brongn. | 34 images |
| Stenotaphrum secundatum (Walter) Kuntze | 590 images |
| Sterculia apetala (Jacq.) H.Karst. | 257 images |
| Stewartia malacodendron L. | 44 images |
| Stewartia ovata (Cav.) Weath. | 21 images |
| Stictocardia tiliifolia (Desr.) Hallier f. | 116 images |
| Stillingia aquatica Chapm. | 1 images |
| Stillingia sylvatica L. | 35 images |
| Stokesia laevis (Hill) Greene | 536 images |
| Streptopus amplexifolius (L.) DC. | 623 images |
| Streptopus lanceolatus (Aiton) Reveal | 112 images |
| Striga asiatica (L.) Kuntze | 161 images |
| Striga gesnerioides (Willd.) Vatke | 35 images |
| Strobilanthes alternata (Burm.f.) Moylan ex J.R.I.Wood | 806 images |
| Strobilanthes reptans (G.Forst.) Moylan ex Y.F.Deng & J.R.I.Wood | 50 images |
| Strophostyles helvola (L.) Elliott | 103 images |
| Strumpfia maritima Jacq. | 13 images |
| Strychnos spinosa Lam. | 173 images |
| Stuckenia pectinata (L.) Börner | 158 images |
| Stylisma patens (Desr.) Myint | 1 images |
| Stylisma villosa (Nash) House | 5 images |
| Stylophorum diphyllum (Michx.) Nutt. | 468 images |
| Stylosanthes hamata (L.) Taub. | 26 images |
| Styrax americanus Lam. | 25 images |
| Styrax grandifolius Aiton | 3 images |
| Styrax japonicus Siebold & Zucc. | 389 images |
| Suaeda linearis (Elliott) Moq. | 4 images |
| Suaeda maritima (L.) Dumort. | 1031 images |
| Suriana maritima L. | 189 images |
| Swietenia mahagoni (L.) Jacq. | 370 images |
| Syagrus romanzoffiana (Cham.) Glassman | 1578 images |
| Symphoricarpos albus (L.) S.F.Blake | 11692 images |
| Symphoricarpos occidentalis (R.Br.) Hook. | 76 images |
| Symphoricarpos orbiculatus Moench | 3594 images |
| Symphyotrichum cordifolium (L.) G.L.Nesom | 1070 images |
| Symphyotrichum drummondii (Lindl.) G.L.Nesom | 1 images |
| Symphyotrichum dumosum (L.) G.L.Nesom | 83 images |
| Symphyotrichum elliottii (Torr. & A.Gray) G.L.Nesom | 1 images |
| Symphyotrichum ericoides (L.) G.L.Nesom | 2137 images |
| Symphyotrichum expansum (Poepp. ex Spreng.) G.L.Nesom | 2 images |
| Symphyotrichum georgianum (Alexander) G.L.Nesom | 12 images |
| Symphyotrichum laeve (L.) Á.Löve & D.Löve | 264 images |
| Symphyotrichum lanceolatum (Willd.) G.L.Nesom | 3579 images |
| Symphyotrichum lateriflorum (L.) Á.Löve & D.Löve | 153 images |
| Symphyotrichum novae-angliae (L.) G.L.Nesom | 3317 images |
| Symphyotrichum novi-belgii (L.) G.L.Nesom | 7289 images |
| Symphyotrichum oblongifolium (Nutt.) G.L.Nesom | 102 images |
| Symphyotrichum ontarionis (Wiegand) G.L.Nesom | 7 images |
| Symphyotrichum oolentangiense (Riddell) G.L.Nesom | 299 images |
| Symphyotrichum patens (Aiton) G.L.Nesom | 4 images |
| Symphyotrichum pilosum (Willd.) G.L.Nesom | 444 images |
| Symphyotrichum praealtum (Poir.) G.L.Nesom | 5 images |
| Symphyotrichum puniceum (L.) Á.Löve & D.Löve | 177 images |
| Symphyotrichum racemosum (Elliott) G.L.Nesom | 7 images |
| Symphyotrichum sericeum (Vent.) G.L.Nesom | 13 images |
| Symphyotrichum shortii (Lindl.) G.L.Nesom | 13 images |
| Symphyotrichum subulatum (Michx.) G.L.Nesom | 970 images |
| Symphytum × uplandicum Nyman | 619 images |
| Symphytum officinale L. | 20985 images |
| Symplocarpus foetidus (L.) Salisb. ex W.P.C.Barton | 558 images |
| Symplocos paniculata (Thunb.) Miq. | 28 images |
| Symplocos tinctoria (L.) L'Hér. | 5 images |
| Synandra hispidula (Michx.) Baill. | 2 images |
| Synedrella nodiflora (L.) Gaertn. | 663 images |
| Syngonanthus flavidulus (Michx.) Ruhland | 28 images |
| Syngonium angustatum Schott | 665 images |
| Syngonium podophyllum Schott | 7918 images |
| Syringa vulgaris L. | 21489 images |
| Syringodium filiforme Kütz. | 4 images |
| Syzygium cumini (L.) Skeels | 1505 images |
| Syzygium jambos (L.) Alston | 1611 images |
| Tabebuia heterophylla (DC.) Britton | 493 images |
| Tabernaemontana alba Mill. | 81 images |
| Taenidia integerrima (L.) Drude | 48 images |
| Taenidia montana (Mack.) Cronquist | 1 images |
| Tagetes erecta L. | 14871 images |
| Tagetes filifolia Lag. | 85 images |
| Tagetes minuta L. | 1131 images |
| Talinum fruticosum (L.) Juss. | 591 images |
| Talinum paniculatum (Jacq.) Gaertn. | 2037 images |
| Tamarindus indica L. | 1866 images |
| Tamarix africana Poir. | 551 images |
| Tamarix canariensis Willd. | 754 images |
| Tamarix gallica L. | 6742 images |
| Tamarix parviflora DC. | 3269 images |
| Tamarix ramosissima Ledeb. | 1953 images |
| Tanacetum balsamita L. | 609 images |
| Tanacetum parthenium (L.) Sch.Bip. | 9517 images |
| Tanacetum vulgare L. | 19610 images |
| Tara vesicaria (L.) Molinari, Sánchez Och. & Mayta | 14 images |
| Taraxacum erythrospermum Andrz. ex Besser | 1230 images |
| Taraxacum sect. Taraxacum F.H.Wigg. | 14850 images |
| Taxodium distichum (L.) Rich. | 10153 images |
| Taxus canadensis Marshall | 1613 images |
| Taxus floridana Nutt. ex Chapm. | 3 images |
| Tecoma stans (L.) Juss. ex Kunth | 6366 images |
| Tectaria incisa Cav. | 35 images |
| Teesdalia nudicaulis (L.) W.T.Aiton | 37 images |
| Telmatoblechnum serrulatum (Rich.) Perrie, D.J.Ohlsen & Brownsey | 324 images |
| Tephrosia cinerea (L.) Pers. | 25 images |
| Tephrosia onobrychoides Nutt. | 2 images |
| Tephrosia virginiana (L.) Pers. | 77 images |
| Terminalia buceras (L.) C.Wright | 131 images |
| Terminalia catappa L. | 3297 images |
| Terminalia molinetii M.Gómez | 2 images |
| Ternstroemia gymnanthera (Wight & Arn.) Bedd. | 1 images |
| Tetragonia tetragonoides (Pall.) Kuntze | 702 images |
| Tetragonotheca helianthoides L. | 4 images |
| Tetrapanax papyrifer (Hook.) K.Koch | 1459 images |
| Teucrium canadense L. | 660 images |
| Teucrium scorodonia L. | 8741 images |
| Thalassia testudinum Banks & Sol. ex K.D.Koenig | 7 images |
| Thalia dealbata Fraser | 562 images |
| Thalia geniculata L. | 185 images |
| Thalictrum clavatum DC. | 5 images |
| Thalictrum dasycarpum Fisch., C.A.Mey. & Avé-Lall. | 10 images |
| Thalictrum dioicum L. | 541 images |
| Thalictrum mirabile Small | 3 images |
| Thalictrum pubescens Pursh | 573 images |
| Thalictrum revolutum DC. | 26 images |
| Thaspium barbinode (Michx.) Nutt. | 35 images |
| Thaspium trifoliatum (L.) A.Gray | 22 images |
| Thelesperma filifolium (Hook.) A.Gray | 5 images |
| Thelesperma megapotamicum (Spreng.) Herter | 45 images |
| Thelypteris dentata (Forssk.) E.P.St.John | 322 images |
| Thelypteris grandis A.R.Sm. | 7 images |
| Thelypteris hispidula (Decne.) C.F.Reed | 38 images |
| Thelypteris kunthii (Desv.) C.V.Morton | 15 images |
| Thelypteris noveboracensis (L.) Nieuwl. | 300 images |
| Thelypteris opulenta (Kaulf.) Fosberg | 2 images |
| Thelypteris ovata R.P.St.John | 12 images |
| Thelypteris palustris Schott | 408 images |
| Thelypteris resinifera (Desv.) Proctor | 7 images |
| Thelypteris reticulata (L.) Proctor | 28 images |
| Thelypteris serrata (Cav.) Alston | 17 images |
| Themeda quadrivalvis (L.) Kuntze | 229 images |
| Thermopsis villosa (Walter) Fernald & B.G.Schub. | 1 images |
| Thespesia populnea (L.) Sol. ex Corrêa | 1390 images |
| Thinopyrum elongatum (Host) D.R.Dewey | 23 images |
| Thinopyrum intermedium (Host) Barkworth & D.R.Dewey | 19 images |
| Thlaspi arvense L. | 2920 images |
| Thrinax radiata Lodd. ex Schult. & Schult.f. | 151 images |
| Thuja occidentalis L. | 7861 images |
| Thunbergia alata Bojer ex Sims | 4245 images |
| Thunbergia erecta (Benth.) T.Anderson | 1662 images |
| Thunbergia fragrans Roxb. | 266 images |
| Thunbergia grandiflora Roxb. | 1146 images |
| Thymelaea passerina (L.) Coss. & Germ. | 77 images |
| Thymophylla pentachaeta (DC.) Small | 101 images |
| Thymophylla tenuiloba (DC.) Small | 69 images |
| Thymus pulegioides L. | 2905 images |
| Tiarella austrina (Lakela) G.L.Nesom | 1 images |
| Tiarella cordifolia L. | 1114 images |
| Tiarella stolonifera G.L.Nesom | 3 images |
| Tiarella wherryi Lakela | 43 images |
| Tidestromia lanuginosa (Nutt.) Standl. | 27 images |
| Tiedemannia filiformis (Walter) Feist & S.R.Downie | 1 images |
| Tilia americana L. | 5047 images |
| Tillandsia balbisiana Schult. & Schult.f. | 13 images |
| Tillandsia bartramii Elliott | 35 images |
| Tillandsia fasciculata Sw. | 246 images |
| Tillandsia flexuosa Sw. | 23 images |
| Tillandsia ionantha Planch. | 904 images |
| Tillandsia paucifolia Baker | 151 images |
| Tillandsia pruinosa Sw. | 14 images |
| Tillandsia recurvata (L.) L. | 521 images |
| Tillandsia setacea Sw. | 6 images |
| Tillandsia usneoides (L.) L. | 997 images |
| Tillandsia utriculata L. | 176 images |
| Tillandsia variabilis Schltdl. | 8 images |
| Tipularia discolor (Pursh) Nutt. | 350 images |
| Tithonia diversifolia (Hemsl.) A.Gray | 1725 images |
| Tithonia rotundifolia (Mill.) S.F.Blake | 1329 images |
| Tomostima cuneifolia (Nutt.) Al-Shehbaz, M.Koch & Jordon-Thaden | 1 images |
| Toona ciliata M.Roem. | 219 images |
| Toona sinensis (A.Juss.) M.Roem. | 71 images |
| Torenia crustacea (L.) Cham. & Schltdl. | 202 images |
| Torenia fournieri Linden ex E.Fourn. | 70 images |
| Torilis africana Spreng. | 85 images |
| Torilis arvensis (Huds.) Link | 5572 images |
| Torilis japonica (Houtt.) DC. | 2044 images |
| Torilis nodosa (L.) Gaertn. | 1022 images |
| Torreya taxifolia Arn. | 7 images |
| Torreyochloa pallida (Torr.) Church | 10 images |
| Tournefortia gnaphalodes (L.) R.Br. ex Roem. & Schult. | 72 images |
| Toxicodendron pubescens Mill. | 72 images |
| Toxicodendron radicans (L.) Kuntze | 5505 images |
| Toxicodendron rydbergii (Small ex Rydb.) Greene | 147 images |
| Toxicodendron vernix (L.) Kuntze | 77 images |
| Toxicoscordion nuttallii (A.Gray) Rydb. | 1 images |
| Trachelospermum jasminoides (Lindl.) Lem. | 10684 images |
| Tradescantia bracteata Small ex Britton | 8 images |
| Tradescantia crassula Link & Otto | 1 images |
| Tradescantia fluminensis Vell. | 7297 images |
| Tradescantia gigantea Rose | 22 images |
| Tradescantia hirsutiflora Bush | 7 images |
| Tradescantia longipes E.S.Anderson & Woodson | 4 images |
| Tradescantia occidentalis (Britton) Smyth | 124 images |
| Tradescantia ohiensis Raf. | 1026 images |
| Tradescantia pallida (Rose) D.R.Hunt | 10541 images |
| Tradescantia reverchonii Bush | 22 images |
| Tradescantia spathacea Sw. | 5130 images |
| Tradescantia subaspera Ker Gawl. | 71 images |
| Tradescantia virginiana L. | 5610 images |
| Tradescantia zebrina Bosse | 8541 images |
| Tragia cordata Michx. | 13 images |
| Tragia ramosa Torr. | 41 images |
| Tragia urticifolia Michx. | 17 images |
| Tragopogon dubius Scop. | 6804 images |
| Tragopogon porrifolius L. | 5088 images |
| Tragopogon pratensis L. | 9101 images |
| Tragus berteronianus Schult. | 76 images |
| Tragus racemosus (L.) All. | 190 images |
| Trapa natans L. | 372 images |
| Trautvetteria caroliniensis (Walter) Vail | 40 images |
| Trema micranthum (L.) Blume | 197 images |
| Triadica sebifera (L.) Small | 711 images |
| Triantha glutinosa (Michx.) Baker | 46 images |
| Triantha racemosa (Walter) Small | 1 images |
| Trianthema portulacastrum L. | 334 images |
| Tribulus cistoides L. | 218 images |
| Tribulus terrestris L. | 2517 images |
| Trichomanes krausii Hook. & Grev. | 12 images |
| Trichomanes membranaceum L. | 9 images |
| Trichophorum cespitosum (L.) Hartm. | 416 images |
| Trichostema brachiatum L. | 25 images |
| Trichostema dichotomum L. | 141 images |
| Trichostema setaceum Houtt. | 4 images |
| Trichostigma octandrum (L.) H.Walter | 105 images |
| Tridax procumbens L. | 637 images |
| Tridens albescens (Vasey) Wooton & Standl. | 5 images |
| Tridens flavus (L.) Hitchc. | 71 images |
| Tridens strictus (Nutt.) Nash | 4 images |
| Tridentopsis mutica (Torr.) P.M.Peterson | 3 images |
| Trifolium angustifolium L. | 1840 images |
| Trifolium arvense L. | 4026 images |
| Trifolium attenuatum Greene | 4 images |
| Trifolium aureum Pollich | 1044 images |
| Trifolium campestre Schreb. | 4493 images |
| Trifolium dubium Sibth. | 3759 images |
| Trifolium hybridum L. | 1856 images |
| Trifolium incarnatum L. | 7655 images |
| Trifolium lappaceum L. | 201 images |
| Trifolium nanum Torr. | 12 images |
| Trifolium nigrescens Viv. | 970 images |
| Trifolium pratense L. | 19167 images |
| Trifolium reflexum L. | 3 images |
| Trifolium repens L. | 13527 images |
| Trifolium resupinatum L. | 1544 images |
| Trifolium stoloniferum Muhl. | 1 images |
| Trifolium striatum L. | 256 images |
| Trifolium tomentosum L. | 511 images |
| Trifolium vesiculosum Savi | 93 images |
| Triglochin striata Ruiz & Pav. | 2 images |
| Trillium catesbaei Elliott | 73 images |
| Trillium cernuum L. | 80 images |
| Trillium cuneatum Raf. | 316 images |
| Trillium decumbens Harb. | 1 images |
| Trillium discolor Hook. | 6 images |
| Trillium erectum L. | 1086 images |
| Trillium flexipes Raf. | 74 images |
| Trillium grandiflorum (Michx.) Salisb. | 1006 images |
| Trillium lancifolium Raf. | 4 images |
| Trillium luteum (Muhl.) Harb. | 28 images |
| Trillium maculatum Raf. | 19 images |
| Trillium nivale Riddell | 30 images |
| Trillium pusillum Michx. | 4 images |
| Trillium recurvatum L.C.Beck | 11 images |
| Trillium rugelii Rendle | 25 images |
| Trillium sessile L. | 329 images |
| Trillium simile Gleason | 16 images |
| Trillium sulcatum T.S.Patrick | 5 images |
| Trillium underwoodii Small | 9 images |
| Trillium undulatum Willd. | 291 images |
| Trillium vaseyi Harb. | 4 images |
| Trillium viridescens Nutt. | 8 images |
| Triodanis perfoliata (L.) Nieuwl. | 637 images |
| Triosteum angustifolium L. | 9 images |
| Triosteum aurantiacum E.P.Bicknell | 6 images |
| Triosteum perfoliatum L. | 54 images |
| Triphasia trifolia (Burm.f.) P.Wilson | 88 images |
| Triphora amazonica Schltr. | 6 images |
| Triphora trianthophoros (Sw.) Rydb. | 9 images |
| Tripidium ravennae (L.) H.Scholz | 111 images |
| Triplasis purpurea (Walter) Chapm. | 4 images |
| Tripleurospermum inodorum (L.) Sch.Bip. | 2576 images |
| Tripleurospermum maritimum (L.) W.D.J.Koch | 947 images |
| Tripsacum dactyloides (L.) L. | 93 images |
| Trisetum flavescens (L.) P.Beauv. | 710 images |
| Triticum aestivum L. | 21932 images |
| Triumfetta pentandra A.Rich. | 21 images |
| Triumfetta rhomboidea Jacq. | 204 images |
| Triumfetta semitriloba Jacq. | 77 images |
| Trollius laxus Salisb. | 26 images |
| Tsuga canadensis (L.) Carrière | 1684 images |
| Tsuga caroliniana Engelm. | 45 images |
| Tulipa gesneriana L. | 9775 images |
| Tulipa sylvestris L. | 4064 images |
| Turnera subulata Sm. | 1242 images |
| Turnera ulmifolia L. | 1896 images |
| Turritis glabra L. | 1079 images |
| Tussilago farfara L. | 12588 images |
| Typha × glauca Godr. | 62 images |
| Typha angustifolia L. | 1197 images |
| Typha domingensis Pers. | 266 images |
| Typha latifolia L. | 3921 images |
| Ulmus alata Michx. | 612 images |
| Ulmus americana L. | 5049 images |
| Ulmus crassifolia Nutt. | 206 images |
| Ulmus minor Mill. | 15572 images |
| Ulmus parvifolia Jacq. | 1329 images |
| Ulmus pumila L. | 4018 images |
| Ulmus rubra Muhl. | 148 images |
| Ulmus serotina Sarg. | 29 images |
| Ulmus thomasii Sarg. | 161 images |
| Uniola paniculata L. | 92 images |
| Urena lobata L. | 1124 images |
| Urochloa arrecta (Hack.) Morrone & Zuloaga | 5 images |
| Urochloa brizantha (A.Rich.) R.D.Webster | 7 images |
| Urochloa deflexa (Schumach.) H.Scholz | 3 images |
| Urochloa dictyoneura (Fig. & De Not.) Veldkamp | 7 images |
| Urochloa distachyos (L.) T.Q.Nguyen | 2 images |
| Urochloa fusca (Sw.) B.F.Hansen & Wunderlin | 18 images |
| Urochloa mutica (Forssk.) T.Q.Nguyen | 19 images |
| Urochloa oligobrachiata (Pilg.) Kartesz | 1 images |
| Urochloa panicoides P.Beauv. | 139 images |
| Urochloa piligera (F.Muell. ex Benth.) R.D.Webster | 6 images |
| Urochloa plantaginea (Link) R.D.Webster | 1 images |
| Urochloa polystachya (Kunth) Mabb. | 8 images |
| Urochloa ramosa (L.) T.Q.Nguyen | 8 images |
| Urochloa reptans (L.) Stapf | 7 images |
| Urochloa subquadripara (Trin.) R.D.Webster | 25 images |
| Urochloa villosa (Lam.) T.Q.Nguyen | 2 images |
| Urtica chamaedryoides Pursh | 45 images |
| Urtica dioica L. | 16230 images |
| Urtica gracilis Aiton | 2 images |
| Urtica urens L. | 4665 images |
| Utricularia amethystina Salzm. ex A.St.-Hil. & Girard | 3 images |
| Utricularia cornuta Michx. | 5 images |
| Utricularia floridana Nash | 13 images |
| Utricularia foliosa L. | 36 images |
| Utricularia geminiscapa Benj. | 13 images |
| Utricularia gibba L. | 52 images |
| Utricularia inflata Walter | 2 images |
| Utricularia intermedia Hayne | 82 images |
| Utricularia juncea Vahl | 6 images |
| Utricularia minor L. | 139 images |
| Utricularia purpurea Walter | 15 images |
| Utricularia radiata Small | 12 images |
| Utricularia simulans Pilg. | 1 images |
| Utricularia striata Leconte ex Torr. | 8 images |
| Utricularia subulata L. | 41 images |
| Uvularia grandiflora Sm. | 276 images |
| Uvularia perfoliata L. | 76 images |
| Uvularia puberula Michx. | 11 images |
| Uvularia sessilifolia L. | 138 images |
| Vaccinium angustifolium Aiton | 794 images |
| Vaccinium arboreum Marshall | 226 images |
| Vaccinium caesariense Mack. | 1 images |
| Vaccinium corymbosum L. | 2842 images |
| Vaccinium crassifolium Andrews | 3 images |
| Vaccinium erythrocarpum Michx. | 3 images |
| Vaccinium hirsutum Buckley | 1 images |
| Vaccinium macrocarpon Aiton | 362 images |
| Vaccinium myrsinites Lam. | 44 images |
| Vaccinium oxycoccos L. | 547 images |
| Vaccinium pallidum Aiton | 184 images |
| Vaccinium stamineum L. | 174 images |
| Vaccinium tenellum Aiton | 1 images |
| Vachellia choriophylla (Benth.) Seigler & Ebinger | 1 images |
| Vachellia cornigera (L.) Seigler & Ebinger | 112 images |
| Vachellia farnesiana (L.) Wight & Arn. | 1852 images |
| Vachellia macracantha (Humb. & Bonpl. ex Willd.) Seigler & Ebinger | 27 images |
| Vachellia seyal (Delile) P.J.H.Hurter | 176 images |
| Vachellia tortuosa (L.) Seigler & Ebinger | 62 images |
| Valeriana dentata (L.) All. | 248 images |
| Valeriana locusta L. | 6604 images |
| Valeriana officinalis L. | 9844 images |
| Valeriana pauciflora Michx. | 52 images |
| Valeriana scandens L. | 1 images |
| Valeriana umbilicata (Sull.) Christenh. & Byng | 13 images |
| Valeriana woodsiana (Torr. & A.Gray) Christenh. & Byng | 162 images |
| Vallisneria americana Michx. | 15 images |
| Vanilla barbellata Rchb.f. | 10 images |
| Vanilla planifolia Andrews | 357 images |
| Varronia bahamensis (Urb.) Millsp. | 1 images |
| Varronia bullata L. | 18 images |
| Varronia curassavica Jacq. | 304 images |
| Veratrum viride Aiton | 651 images |
| Verbascum blattaria L. | 3929 images |
| Verbascum lychnitis L. | 4331 images |
| Verbascum phlomoides L. | 3687 images |
| Verbascum phoeniceum L. | 917 images |
| Verbascum sinuatum L. | 6503 images |
| Verbascum thapsus L. | 17197 images |
| Verbascum virgatum Stokes | 1755 images |
| Verbena bipinnatifida Schauer | 467 images |
| Verbena bonariensis L. | 10211 images |
| Verbena bracteata Cav. ex Lag. & Rodr. | 59 images |
| Verbena brasiliensis Vell. | 1041 images |
| Verbena canadensis (L.) Britton | 161 images |
| Verbena canescens Kunth | 22 images |
| Verbena halei Small | 186 images |
| Verbena hastata L. | 1370 images |
| Verbena incompta P.W.Michael | 98 images |
| Verbena officinalis L. | 8587 images |
| Verbena pumila Rydb. | 34 images |
| Verbena rigida Spreng. | 2236 images |
| Verbena simplex Lehm. | 74 images |
| Verbena stricta Vent. | 408 images |
| Verbena supina L. | 53 images |
| Verbena tenera Spreng. | 358 images |
| Verbena tweedieana Niven ex Hook. | 14 images |
| Verbena urticifolia L. | 994 images |
| Verbena xutha Lehm. | 4 images |
| Verbesina alternifolia (L.) Britton ex Kearney | 726 images |
| Verbesina encelioides (Cav.) Benth. & Hook.f. ex A.Gray | 641 images |
| Verbesina helianthoides Michx. | 25 images |
| Verbesina occidentalis Walter | 221 images |
| Verbesina virginica L. | 421 images |
| Verbesina walteri Shinners | 8 images |
| Vernicia fordii (Hemsl.) Airy Shaw | 84 images |
| Vernonia angustifolia Michx. | 48 images |
| Vernonia arkansana DC. | 55 images |
| Vernonia baldwinii Torr. | 813 images |
| Vernonia blodgettii Small | 4 images |
| Vernonia fasciculata Michx. | 160 images |
| Vernonia gigantea (Walter) Trel. | 26 images |
| Vernonia glauca Willd. | 3 images |
| Vernonia lettermannii Engelm. ex A.Gray | 5 images |
| Vernonia lindheimeri A.Gray & Engelm. | 3 images |
| Vernonia missurica Raf. | 28 images |
| Vernonia noveboracensis (L.) Michx. | 849 images |
| Vernonia texana (A.Gray) Small | 13 images |
| Veronica agrestis L. | 1853 images |
| Veronica anagallis-aquatica L. | 1783 images |
| Veronica arvensis L. | 3375 images |
| Veronica beccabunga L. | 2963 images |
| Veronica catenata Pennell | 123 images |
| Veronica chamaedrys L. | 19579 images |
| Veronica cymbalaria Bodard | 1752 images |
| Veronica dillenii Crantz | 56 images |
| Veronica filiformis Sm. | 3272 images |
| Veronica hederifolia L. | 3273 images |
| Veronica longifolia L. | 2169 images |
| Veronica officinalis L. | 3991 images |
| Veronica peregrina L. | 371 images |
| Veronica persica Poir. | 14976 images |
| Veronica polita Fr. | 2667 images |
| Veronica scutellata L. | 336 images |
| Veronica serpyllifolia L. | 3947 images |
| Veronica sublobata M.A.Fisch. | 842 images |
| Veronica teucrium L. | 920 images |
| Veronicastrum virginicum (L.) Farw. | 1482 images |
| Viburnum acerifolium L. | 776 images |
| Viburnum cassinoides L. | 17 images |
| Viburnum dentatum L. | 700 images |
| Viburnum dilatatum Thunb. | 200 images |
| Viburnum lantana L. | 15428 images |
| Viburnum lantanoides Michx. | 721 images |
| Viburnum lentago L. | 357 images |
| Viburnum nudum L. | 287 images |
| Viburnum obovatum Walter | 28 images |
| Viburnum opulus L. | 20867 images |
| Viburnum plicatum Thunb. | 5020 images |
| Viburnum prunifolium L. | 539 images |
| Viburnum rafinesqueanum Schult. | 4 images |
| Viburnum recognitum Fernald | 68 images |
| Viburnum rhytidophyllum Hemsl. | 6525 images |
| Viburnum rufidulum Raf. | 246 images |
| Viburnum setigerum Hance | 25 images |
| Viburnum sieboldii Miq. | 94 images |
| Viburnum suspensum Lindl. | 125 images |
| Viburnum trilobum Marshall | 2916 images |
| Vicia acutifolia Elliott | 5 images |
| Vicia americana Muhl. ex Willd. | 103 images |
| Vicia caroliniana Walter | 52 images |
| Vicia grandiflora Scop. | 461 images |
| Vicia hirsuta (L.) Gray | 2392 images |
| Vicia lathyroides L. | 418 images |
| Vicia ludoviciana Nutt. | 31 images |
| Vicia lutea L. | 901 images |
| Vicia pannonica Crantz | 650 images |
| Vicia sativa L. | 14714 images |
| Vicia tetrasperma (L.) Schreb. | 742 images |
| Vicia villosa Roth | 9116 images |
| Vigna hosei (Craib) Backer | 4 images |
| Vigna luteola (Jacq.) Benth. | 264 images |
| Vigna unguiculata (L.) Walp. | 352 images |
| Vinca major L. | 17257 images |
| Vinca minor L. | 16437 images |
| Vincetoxicum nigrum (L.) Moench | 659 images |
| Viola arvensis Murray | 5586 images |
| Viola blanda Willd. | 302 images |
| Viola canadensis L. | 253 images |
| Viola cucullata Aiton | 44 images |
| Viola hastata Michx. | 86 images |
| Viola hirsutula Brainerd | 7 images |
| Viola inconspicua Blume | 12 images |
| Viola labradorica Schrank | 246 images |
| Viola lanceolata L. | 58 images |
| Viola macloskeyi F.E.Lloyd | 10 images |
| Viola nephrophylla Greene | 5 images |
| Viola odorata L. | 15166 images |
| Viola palmata L. | 19 images |
| Viola pedata L. | 179 images |
| Viola pedatifida G.Don | 19 images |
| Viola pubescens Aiton | 925 images |
| Viola rostrata Muhl. ex Pursh | 89 images |
| Viola rotundifolia Michx. | 45 images |
| Viola sagittata Aiton | 115 images |
| Viola septemloba Leconte | 14 images |
| Viola sororia Willd. | 1853 images |
| Viola striata Aiton | 285 images |
| Viola tricolor L. | 8734 images |
| Viola tripartita Elliott | 6 images |
| Viola villosa Walter | 8 images |
| Viola walteri House | 7 images |
| Visnaga daucoides Gaertn. | 2470 images |
| Vitex agnus-castus L. | 7453 images |
| Vitex negundo L. | 397 images |
| Vitex trifolia L. | 728 images |
| Vitis aestivalis Michx. | 1671 images |
| Vitis cinerea (Engelm.) Millardet | 2 images |
| Vitis labrusca L. | 729 images |
| Vitis mustangensis Buckley | 208 images |
| Vitis riparia Michx. | 1040 images |
| Vitis rotundifolia Michx. | 1747 images |
| Vitis rupestris Scheele | 50 images |
| Vitis vulpina L. | 1274 images |
| Vittaria appalachiana Farrar & Mickel | 1 images |
| Vittaria lineata (L.) Sm. | 25 images |
| Wahlenbergia linarioides (Lam.) A.DC. | 24 images |
| Wahlenbergia marginata (Thunb.) A.DC. | 25 images |
| Waldsteinia fragarioides (Michx.) Tratt. | 35 images |
| Waltheria indica L. | 552 images |
| Washingtonia filifera (Rafarin) H.Wendl. ex de Bary | 100 images |
| Washingtonia robusta H.Wendl. | 3440 images |
| Weigela florida (Bunge) A.DC. | 9640 images |
| Wisteria floribunda (Willd.) DC. | 3630 images |
| Wisteria frutescens (L.) Poir. | 1241 images |
| Wisteria sinensis (Sims) DC. | 1845 images |
| Wisteriopsis reticulata (Benth.) J.Compton & Schrire | 25 images |
| Wolffia brasiliensis Wedd. | 267 images |
| Wolffia columbiana H.Karst. | 1 images |
| Wolffia globosa (Roxb.) Hartog & Plas | 1 images |
| Wolffiella gladiata (Hegelm.) Hegelm. | 1 images |
| Woodsia ilvensis (L.) R.Br. | 93 images |
| Woodsia obtusa (Spreng.) Torr. | 18 images |
| Woodwardia areolata (L.) T.Moore | 1 images |
| Woodwardia radicans (L.) Sm. | 450 images |
| Woodwardia virginica (L.) Sm. | 21 images |
| Xanthium chinense Mill. | 1 images |
| Xanthium orientale L. | 519 images |
| Xanthium spinosum L. | 1143 images |
| Xanthorhiza simplicissima Marshall | 72 images |
| Xanthosoma sagittifolium (L.) Schott | 1315 images |
| Xenostegia tridentata (L.) D.F.Austin & Staples | 59 images |
| Xerophyllum asphodeloides (L.) Nutt. | 8 images |
| Ximenia americana L. | 255 images |
| Xylosma congesta (Lour.) Merr. | 7 images |
| Xyris caroliniana Walter | 9 images |
| Xyris difformis Chapm. | 3 images |
| Xyris jupicai Rich. | 347 images |
| Xyris laxifolia Mart. | 12 images |
| Xyris tennesseensis Kral | 30 images |
| Xyris torta Sm. | 7 images |
| Yeatesia viridiflora (Nees) Small | 3 images |
| Youngia japonica (L.) DC. | 1361 images |
| Yucca aloifolia L. | 4407 images |
| Yucca arkansana Trel. | 63 images |
| Yucca filamentosa L. | 5718 images |
| Yucca flaccida Haw. | 293 images |
| Yucca gloriosa L. | 8722 images |
| Zamia integrifolia L.f. | 52 images |
| Zannichellia palustris L. | 78 images |
| Zanthoxylum americanum Mill. | 272 images |
| Zanthoxylum clava-herculis L. | 178 images |
| Zanthoxylum fagara (L.) Sarg. | 219 images |
| Zanthoxylum flavum Vahl | 2 images |
| Zea mays L. | 24295 images |
| Zea mexicana (Schrad.) Kuntze | 2 images |
| Zeltnera texensis (Griseb.) G.Mans. ex J.S.Pringle | 1 images |
| Zenobia pulverulenta (W.Bartram) Pollard | 19 images |
| Zephyranthes atamasco (L.) Herb. | 65 images |
| Zephyranthes candida Herb. | 8 images |
| Zephyranthes carinata Herb. | 218 images |
| Zephyranthes chlorosolen (Herb.) D.Dietr. | 2 images |
| Zephyranthes citrina Baker | 148 images |
| Zephyranthes drummondii D.Don | 8 images |
| Zephyranthes robusta (Herb.) Baker | 485 images |
| Zephyranthes rosea Lindl. | 1292 images |
| Zephyranthes treatiae S.Watson | 10 images |
| Zephyranthes tubispatha (L'Hér.) Herb. | 24 images |
| Zeuxine strateumatica (L.) Schltr. | 52 images |
| Zigadenus glaberrimus Michx. | 3 images |
| Zingiber zerumbet (L.) Roscoe ex Sm. | 369 images |
| Zinnia elegans Jacq. | 5411 images |
| Zinnia peruviana (L.) L. | 3232 images |
| Zizania aquatica L. | 19 images |
| Zizia aptera (A.Gray) Fernald | 286 images |
| Zizia aurea (L.) W.D.J.Koch | 83 images |
| Zizia trifoliata (Michx.) Fernald | 6 images |
| Ziziphus jujuba Mill. | 3091 images |
| Ziziphus mauritiana Lam. | 675 images |
| Zornia latifolia Sm. | 30 images |
| Zostera marina L. | 120 images |
| Zoysia japonica Steud. | 12 images |
| Zoysia matrella (L.) Merr. | 63 images |