Taxon  Report   1202 
Bromus hordeaceus  L.
Soft brome,  Soft chess
Bromus hordeaceus
© 2009 Keir Morse
Click on a photo to see it bigger.
Bromus hordeaceus
© 2008 Zoya Akulova
Bromus hordeaceus
© 2004 Carol W. Witham
Bromus hordeaceus, a monocot, is an annual grass that is not native to California; it was introduced from elsewhere and naturalized in the wild.
It is an invasive plant. The California Invasive Plant Council classifies its potential impact on native ecosystems as limited (plant profile / CalWeedMapper).

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
Bromus hordeaceus
© 2006 Brent Miller
Family: POACEAE  
Genus: Bromus
weed, characteristic of disturbed places
Habitat: disturbed [Walker]
Wetlands:Usually occurs in non wetlands, but occasionally found in wetlands [U.S. Fish & Wildlife Service.]
Name Status:
Accepted by TJM2 + PLANTS + JM93
Alternate Names:
(according to)

TJM2: Bromus hordeaceus ssp. divaricatus
TJM2: Bromus hordeaceus ssp. molliformis
TJM2: Bromus hordeaceus ssp. thominei
TJM2: Bromus mollis
More information about  Bromus hordeaceus
Photos on CalPhotos / Google Images
Photos and ID tips from

UC Integrated Pest Management Weed Photo Gallery
(profile of this plant as an agricultural weed)

Jepson eFlora

Records from the Consortium of California Herbaria

Original Publication citation (ITIS)


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]. 2017. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Apr 26, 2017).

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