Page author: David Giblin
Polygonum sawatchense
Sawatch knotweed
Specimens
Photos
Distribution: Occurring east of the Cascades crest in Washington; British Columbia 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
Growth Duration: Annual
Conservation Status: Not of concern
Description:
[none provided]
Accepted Name:
Polygonum sawatchense Small
Publication: Bull. Torrey Bot. Club. 20: 213, plate 156. 1893.
Publication: Bull. Torrey Bot. Club. 20: 213, plate 156. 1893.
Synonyms & Misapplications:
(none provided)
Infraspecies:
-
ssp. oblivium – sublime knotweed
Occurring east of the Cascades crest in Washington; British Columbia to California, east to Idaho. -
ssp. sawatchense – Sawatch knotweed Occurring east of the Cascades crest in Washington; Washington to California, east to the northern Great Plains.
Additional Resources:
PNW Herbaria: Specimen records of Polygonum sawatchense in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Polygonum sawatchense checklist entry.
OregonFlora: Polygonum sawatchense information.
E-Flora BC: Polygonum sawatchense atlas page.
CalPhotos: Polygonum sawatchense photos.
USDA Plants: Polygonum sawatchense information.
18 photographs:
Group by
