Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Bromus carinatus is a species of native bunchgrass known by the common names California Brome and Mountain Brome. It is native to western North America from Alaska to northern Mexico, where it can be found in many types of habitat. It is found in every county in California. It is a perennial grass growing in clumps 0.5 to 1.5 meters tall, with many narrow leaves up to 40 centimeters long. The flower cluster is a spreading or drooping array of flat spikelets longer than they are wide. The grass is wind-pollinated but is also sometimes cleistogamous, so that the flowers pollinate themselves, especially under stressful conditions. It also reproduces vegetatively via tillers. This grass is used for control of erosion and revegetation of damaged land, as well as a highly palatable forage for livestock. In the garden it has a reputation for being short-lived but readily re-seeds. It completes well with non-native weeds, and its sod-building root system makes it useful for erosion control.

Plant type

Grass

Size

1 - 5 ft Tall
1 ft Wide

Form

Upright, Spreading

Growth rate

Fast

Dormancy

Summer Deciduous

Fragrance

None

Calscape icon
Color

Yellow

Flowering season

Spring

Special uses

Groundcover

Sun

Full Sun, Partial Shade

Water

Low

Summer irrigation

Max 2x / month once established

Ease of care

Easy

Cold tolerance

Tolerates cold to -15° F

Soil drainage

Medium, Slow

Soil description

Tolerates most soil types but especially good in clay.
Soil PH: 5.5 - 8.0

Maintenance

Responds favorably to mowing in spring and summer.

Propagation

Propagate from seeds, which are easily collected from the inflorescence.

Site type

Found in virtually all natural settings in California

Plant communities

Alpine Fell-Fields, Chaparral, Foothill Woodland, Lodgepole Forest, Red Fir Forest, Subalpine Forest, Valley Grassland, Yellow Pine Forest

California brome is a common widespread grass and can be grown successfully with many other California Natives that prefer sun and some summer water, such as Black oak (Quercus kelloggii), Douglas' sagewort (Artemesia douglasiana), and dog violet (Viola adunca).

Caterpillars
Butterflies

Butterflies and moths supported

1 confirmed and 5 likely

Confirmed Likely

Umber Skipper

Poanes melane

Common Roadside-Skipper

Amblyscirtes vialis

Arctic Skipper

Carterocephalus palaemon