Page author: David Giblin
Polygonum achoreum
Blake's knotweed
Specimens
Photos

Distribution: Reported for Washington, but specimen from Pierce County is likely a misidentification; Alaska to Oregon and Nevada, east across North America to the Atlantic Coast.

Habitat: Disturbed areas.

Flowers: May-July

Origin: Native

Growth Duration: Annual

Conservation Status: Not of concern

Pollination: Bees, flies

Description:

[none provided]


Accepted Name:
Polygonum achoreum S.F. Blake
Publication: Rhodora. 19: 232. 1917.

Synonyms & Misapplications:
Polygonum erectum L. ssp. achoreum (S.F. Blake) Á. Löve & D. Löve
Additional Resources:

PNW Herbaria: Specimen records of Polygonum achoreum in the Consortium of Pacific Northwest Herbaria database

WA Flora Checklist: Polygonum achoreum checklist entry

OregonFlora: Polygonum achoreum information

E-Flora BC: Polygonum achoreum atlas page

CalPhotos: Polygonum achoreum photos

7 photographs:
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