Carduus pycnocephalus L.Southwestern U.S.A.Observation
1Apr 21, 2017
Most probable name
Carduus pycnocephalus L.
Asteraceae Slender thistle
Submitted name
Carduus pycnocephalus L.
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Additional data
Date created: Apr 22, 2017
Last revised: Jul 21, 2023
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