Parent species:
Achnatherum occidentale

Plant Communities:
Sagebrush Scrub
Yellow Pine Forest
Red Fir Forest
Lodgepole Forest

Synonyms:
Achnatherum nelsonii ssp. longiaristatum
Achnatherum occidentalis ssp. californicum
Stipa californica
Stipa nelsonii var. longiaristata
Stipa occidentalis var. californica