[
Needlegrasses and Ricegrasses: The Genera
Achnatherum
,
Celtica
,
Eriocoma
,
Hesperostipa
East of the Cascade Mountains of Oregon and Washington
]
California Needlegrass
Eriocoma occidentalis
ssp.
californica
Synonyms:
Achnatherum occidentale
ssp.
californicum
,
Stipa californica
,
Stipa occidentalis
var.
occidentalis
Paul Slichter