Page author: David Giblin
Achnatherum occidentale
western needlegrass
Specimens
Photos
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Grassland, sagebrush desert, and coniferous forests from low to middle elevations.
Flowers: May-July
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Description:
[none provided]
Accepted Name:
Achnatherum occidentale (Thurb. ex S. Watson) Barkworth
Publication: (Piper) Barkworth, Phytologia 74: 10. 1993.
Publication: (Piper) Barkworth, Phytologia 74: 10. 1993.
Synonyms & Misapplications:
Eriocoma occidentalis (Thurb. ex S.Watson) Romasch.
Stipa occidentalis Thurb. ex S. Watson [HC]
Stipa occidentalis Thurb. ex S. Watson [HC]
Infraspecies:
-
ssp. californicum – California needlegrass
Occurring east of the Cascades in Washington; Washington to California, east to Montana, Wyoming, and Nevada. -
ssp. pubescens – western needlegrass Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to California, east to Wyoming and Nevada.
Additional Resources:
PNW Herbaria: Specimen records of Achnatherum occidentale in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Achnatherum occidentale checklist entry
OregonFlora: Achnatherum occidentale information
E-Flora BC: Achnatherum occidentale atlas page
CalPhotos: Achnatherum occidentale photos
15 photographs:
Group by
