Zizia W.D.J. Koch. Golden-Alexanders.
A genus of about 4 species, perennial herbs, temperate, of North America.
[see combined key to Thaspium and Zizia under Thaspium]
Ref: Cooperrider (1985); Mathias & Constance (1945). Show full citations.
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© Keith Bradley | Original Image ⭷
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