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Jared Gorrell   cc-by-nc-4.0

Polygonum erectum (Erect Knotweed) is a species of annual herb in the family Polygonaceae. They are native to Canada and The Contiguous United States.

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EOL has data for 11 attributes, including:

Known occurrences, collected specimens and observations of erect knotweed. View this species on GBIF