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Image of Davis' knotweed
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Davis' Knotweed

Koenigia davisiae (W. H. Brewer ex A. Gray) T. M. Schust. & Reveal

Corey Lange   cc-by-nc-4.0

Koenigia davisiae (Davis' Knotweed) is a species of perennial herb in the family Polygonaceae. They have a self-supporting growth form. They are native to The Contiguous United States, Western North America, and Asia. They have simple, broad leaves and purple flowers. Individuals can grow to 0.4 m.

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EOL has data for 69 attributes, including: