Ambrosia psilostachya (Cuman Ragweed) is a species of perennial herb in the family Asteraceae. It has a self-supporting growth form. It is associated with freshwater habitat. Cuman Ragweed is native to Canada, the contiguous United States, United States, and the Americas. It has simple, broad leaves. Flowers are visited by Bordered Patch. Cuman Ragweed is a photoautotroph. Individuals can grow to 0.44 m.
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