California brome

Bromus carinatus

Cool season, perennial bunchgrass sometimes acting as an annual or biennial. Occurs below 11,000 ft. elevation in open areas and woods in a wide variety of climates. Common in the Pacific Coast region, often occurring with Mountain brome (B. marginatus)and reportedly hybridizing with it. Cool season, annual bunchgrass, sometimes acting as a biennial. Occurs below 11,000 ft. elevation in open areas and woods, and can be found in a wide variety of climates, from moist to dry.