Taxon  Report   11634 
Elymus caput-medusae  L.
Medusa head
Elymus caput-medusae
© 2008 Keir Morse
Click on a photo to see it bigger.
Elymus caput-medusae
© 2011 Steve Matson
Elymus caput-medusae
© 2010 Zoya Akulova
Elymus caput-medusae, a monocot, is an annual grass that is not native to California; it was introduced from elsewhere and naturalized in the wild. Cal-IPC rating: high

Interactive Distribution Map

Observation Hotline
(observation details + photos)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Elymus caput-medusae
© 2011 Steve Matson
Family: POACEAE  
Genus: Elymus
weed, characteristic of disturbed places
Distribution by County 

Add an Observation of  Elymus caput-medusae

Name Status:
Accepted by TJM2
PLANTS accepted name: Taeniatherum caput-medusae
Alternate Names:
(according to)

TJM2: Taeniatherum asperum
TJM2: Taeniatherum caput-medusae
More information about  Elymus caput-medusae
Photos on CalPhotos / Google Images
Jepson eFlora

Records from the Consortium of California Herbaria


Search (Flora of North America)

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: Feb 17, 2018).

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