Taxon  Report   75 
Achnatherum occidentale  (Thurb. ex S. Watson) Barkworth  (not an active name)
Western needlegrass,  Western stipa
Achnatherum occidentale
© 2006 Steve Matson
More photos from
CalPhotos / Calflora
Achnatherum occidentale, a monocot, is a perennial grass that is native to California and is also found outside of California, but is confined to western North America.

Interactive Distribution Map

Observation Hotline
(observation details + photos)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Achnatherum occidentale
© 2002 Steve Matson
Family: POACEAE  
Genus: Achnatherum
Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Subalpine Forest, Alpine Fell-fields
Distribution by County 

Add an Observation of  Achnatherum occidentale

Name Status:
Accepted by PLANTS + JM93
ICPN accepted name: Stipa occidentalis
Alternate Names:
(according to)

NOTE: Achnatherum occidentale is not an active name in the Calflora species table.
More information about  Achnatherum occidentale
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on CalPhotos / Google Images

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (Flora of North America)

Search the Lady Bird Johnson Wildflower Center

website references from Google

Suggested Citation
Calflora: Information on California plants for education, research and conservation,
with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria.
[web application]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: May 25, 2018).

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