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Bromus carinatus

Bromus carinatus Hook. & Arn.

California Brome

Poaceae (Grass Family)

Synonym(s): Bromus carinatus var. californicus, Bromus carinatus var. carinatus, Bromus carinatus var. hookerianus, Bromus laciniatus, Ceratochloa carinata

USDA Symbol: brca5

USDA Native Status: L48 (N), AK (I), CAN (N)

California brome is a variable species, differing in, among other things, duration. Considered annuals, biennials & perennials, all appear actually to be short-lived perennials that sometimes flower the first season. The culms are usually 2-4 ft. tall with a narrow panicle. The branches of the seed head are usually erect, but may be drooping.


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Plant Characteristics

Duration: Annual
Habit: Grass/Grass-like
Root Type: Fibrous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Venation: Parallel
Fruit Type: Caryopsis
Size Notes: Up to about 6 feet tall, often shorter.
Leaf: Green

Bloom Information

Bloom Color: Yellow , Green , Brown
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov


USA: CA , CO , KS , NM , OR , WA
Canada: AB , BC , ON , YT
Native Habitat: A variety of open or shaded, dry sites.

Growing Conditions

Water Use: Low
Light Requirement: Part Shade
CaCO3 Tolerance: Medium
Soil Description: Various dry soils.
Conditions Comments: Has been known to persist for several seasons, so can be treated somewhat like a perennial.


Use Food: Seed harvested by indigenous Californians.
Use Other: Culms used in basketry by indigenous Californians.
Attracts: Birds


Commercially Avail: yes

Find Seed or Plants

Find seed sources for this species at the Native Seed Network.

View propagation protocol from Native Plants Network.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Native Seed Network - Corvallis, OR

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Bromus carinatus in USDA Plants
FNA: Find Bromus carinatus in the Flora of North America (if available)
Google: Search Google for Bromus carinatus


Record Modified: 2022-12-16
Research By: TWC Staff

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