Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Idaho.
Habitat: Dry to moist forest openings and meadows from moderate elevations to the subalpine.
Flowers: June-August
Origin: Native
Conservation Status: Review Group 1 in Washington (WANHP)
Pollination: Bees, flies
[none provided]
Publication: Sida. 20: 1637, figs. 1b, 2b, d, f. 2003.
PNW Herbaria: Specimen records of Polygonum sawatchense ssp. oblivium in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Polygonum sawatchense ssp. oblivium checklist entry.
OregonFlora: Polygonum sawatchense ssp. oblivium information.
E-Flora BC: Polygonum sawatchense ssp. oblivium atlas page.
CalPhotos: Polygonum sawatchense ssp. oblivium photos.
USDA Plants: Polygonum sawatchense ssp. oblivium information.
