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Annie Zell   cc-by-nc-4.0

Epilobium rigidum (Stiff Willowherb) is a species of perennial herb in the family Onagraceae. They are native to The Contiguous United States and Borneo.

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EOL has data for 10 attributes, including:

Known occurrences, collected specimens and observations of stiff willowherb. View this species on GBIF