Page author: David Giblin
Polygonum sawatchense ssp. sawatchense
Sawatch knotweed
Specimens
Photos

Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to the northern 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

Pollination: Bees, flies

Description:

[none provided]


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

Synonyms & Misapplications:
Polygonum douglasii Greene ssp. johnstonii (Munz) J.C. Hickman [JPM, ILBC4]
Polygonum douglasii Greene var. johnstonii Munz
Polygonum exile Eastw.
Polygonum triandrum Coolidge
Additional Resources:

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

WA Flora Checklist: Polygonum sawatchense ssp. sawatchense checklist entry

OregonFlora: Polygonum sawatchense ssp. sawatchense information

E-Flora BC: Polygonum sawatchense ssp. sawatchense atlas page

CalPhotos: Polygonum sawatchense ssp. sawatchense photos

5 photographs:
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