Taxon  Report   1200    
Bromus diandrus  Roth
Bromegrass,  Ripgut brome, Ripgut grass
Bromus diandrus
© 2009 Neal Kramer
Photos from
CalPhotos / Calflora
Bromus diandrus
© 2008 Zoya Akulova
Bromus diandrus
© 1995 Saint Mary's College of California
Bromus diandrus, 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: Moderate

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Bromus diandrus
© 2018 Angelique Herman
Family: POACEAE  
Genus: Bromus
Communities: weed, characteristic of disturbed places

Habitat: disturbed

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
ICPN: Bromus diandrus var. rigidus
ICPN: Bromus rigidus
More information about  Bromus diandrus
Photos on   /   Google Images
UC Integrated Pest Management Weed Photo Gallery
(profile of this plant as an agricultural weed)

Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

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: Dec 12, 2018).

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