Checklist » Polygonaceae » Polygonum achoreum
Polygonum achoreum S.F. Blake[FNA5, HC, HC2]
Blake's knotweed

Publication: Rhodora. 19: 232. 1917.

Origin: Native

Herbarium search: CPNWH

Notes: FNA5: "Polygonum achoreum frequently is confused with P. erectum. It can be distinguished by its usually homophyllous leaves, its perianth, which is enlarged at the base and constricted above the fruit, its longer perianth tube, and its yellow-green to tan, tubercled achenes."

Last updated 2/13/2024 by David Giblin.


Photo © 2015 Craig Althen
(from WTU Image Collection)
Synonyms & Misapplied Names:
Polygonum erectum L. ssp. achoreum (S.F. Blake) Á. Löve & D. Löve
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