Polygonum sawatchense ssp. sawatchense - Burke Herbarium Image Collection

Burke Herbarium Image Collection

Vascular Plants, Macrofungi, & Lichenized Fungi of Washington

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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.

USDA Plants: Polygonum sawatchense ssp. sawatchense information.

5 photographs:

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