Distribution: Occurring east of the Cascades crest in Washington; Alaska to northeastern Oregon, east to the Canadian Great Plains and south in the Rocky Mountains to Colorado.
Habitat: Sandy and gravelly sites in grassland, open forest, and sagebrush grassland.
Flowers: June-July
Origin: Native
Growth Duration: Perennial
Conservation Status: Sensitive in Washington (WANHP)
Pollination: Wind
[none provided]
PNW Herbaria: Specimen records of Achnatherum richardsonii in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Achnatherum richardsonii checklist entry.
OregonFlora: Achnatherum richardsonii information.
E-Flora BC: Achnatherum richardsonii atlas page.
CalPhotos: Achnatherum richardsonii photos.
USDA Plants: Achnatherum richardsonii information.