Page author: David Giblin
Polygonum parryi
Parry's knotweed, prickly knotweed

Distribution: Occurring in the east end of the Columbia River Gorge in Washington; south-central Washington to California.

Habitat: Vernal pools, seasonally damp ground at low elevations.

Flowers: June-July

Origin: Native

Growth Duration: Annual

Conservation Status: Threatened in Washington (WANHP)


[none provided]

Accepted Name:
Polygonum parryi Greene
Publication: Bull. Torrey Bot. Club. 8: 99. 1881. 1881.

Synonyms & Misapplications:
(none provided)
Additional Resources:

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

WA Flora Checklist: Polygonum parryi checklist entry.

E-Flora BC: Polygonum parryi atlas page.

CalPhotos: Polygonum parryi photos.

USDA Plants: Polygonum parryi information.

3 photographs:
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