Northwestern U.S.A. Plants of Northwestern U.S.A.Explore

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• Genera
• Species 10

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Equisetum × ferrissii Clute

Ferriss' Horsetail

1 1 Observation

Equisetaceae

Equisetum × litorale Kühlew. ex Rupr.

Horsetail

15 5 Observations

Equisetaceae

Equisetum arvense L.

Least Concern

Common Horsetail

6,136 5,270 Observations

Equisetaceae

Equisetum fluviatile L.

Least Concern

River horsetail

776 603 Observations

Equisetaceae

Equisetum laevigatum A.Braun & Engelm.

Horsetail

68 58 Observations

Equisetaceae

Equisetum palustre L.

Least Concern

Marsh horsetail

849 603 Observations

Equisetaceae

Equisetum pratense Ehrh.

Meadow horsetail

387 333 Observations

Equisetaceae

Equisetum scirpoides Michx.

Least Concern

Dwarf Horsetail

74 66 Observations

Equisetaceae

Equisetum sylvaticum L.

Wood horsetail

2,207 1,872 Observations

Equisetaceae

Equisetum variegatum Schleich. ex F.Weber & D.Mohr

Variegated Scouring-Rush

94 63 Observations

Equisetaceae

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