Taxon  Report   1237 
Calamagrostis crassiglumis  Thurb.
Thurber's reed grass
Calamagrostis crassiglumis
© 2000 Doreen L. Smith
More photos from
CalPhotos / Calflora
Calamagrostis crassiglumis
© 2007 Steve Matson
Calamagrostis crassiglumis
© 2013 Vernon Smith
Calamagrostis crassiglumis, a monocot, is a perennial grass (rhizomatous) that is native to California and is also found elsewhere in North America and beyond.
CNPS Rare Plant Rank: 2B.1 (rare, threatened, or endangered in CA; common elsewhere).   8th Edition

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Plant Characteristics
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Bloom Period
Calamagrostis crassiglumis
© 2011 Vernon Smith
Family: POACEAE  
Genus: Calamagrostis
Northern Coastal Scrub, Freshwater Wetlands, wetland-riparian
Habitat: freshwater-marsh
Distribution by County 

Add an Observation of  Calamagrostis crassiglumis

Name Status:
Accepted by CNPS
ICPN + PLANTS accepted name: Calamagrostis stricta ssp. inexpansa
More information about  Calamagrostis crassiglumis
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on CalPhotos / Google Images
Photos on

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: Jun 21, 2018).

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