Page author: David Giblin
Polygonum sawatchense

Distribution: Occurring east of the Cascades crest in Washington; British Columbia south to California, east to the Great Plains.

Habitat: Dry to moist forest openings and meadows from moderate elevations to the subalpine.

Flowers: June-August

Origin: Native

Conservation Status: Not of concern


[none provided]

Accepted Name:
Polygonum sawatchense Small
Publication: Bull. Torrey Bot. Club. 20: 213, plate 156. 1893.

Synonyms & Misapplications:
(none provided)
ssp. oblivium – Sawatch knotweed
ssp. sawatchense – Sawatch knotweed
Additional Resources:

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

WA Flora Checklist: Polygonum sawatchense checklist entry.

E-Flora BC: Polygonum sawatchense atlas page.

CalPhotos: Polygonum sawatchense photos.

USDA Plants: Polygonum sawatchense information.

17 photographs:
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