Page author: David Giblin
Achnatherum richardsonii
Richardson's ricegrass

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]

Accepted Name:
Achnatherum richardsonii (Link) Barkworth
Publication: Phytologia 74(1): 12. 1993.

Synonyms & Misapplications:
Stipa richardsonii Link [HC]
Additional Resources:

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

12 photographs:
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