Bromus inermis

Smooth brome, hungarian brome, Hungarian Brome

Family: Poaceae · Type: perennial · Not Native

Smooth brome is a naturalized perennial grass found in coastal, northern California, high Cascade Range, Sierra Nevada, southern coastal, and Great Basin regions in disturbed sites and roadsides at elevations up to 2,700 meters. Flowering from March to August, this grass produces pale green to tan spikelets 20 to 33 millimeters long in open, spreading clusters. Growing 45 to 130 centimeters tall with extensive rhizomatous roots, it forms dense, spreading clumps in open areas. Its leaf blades are 5 to 15 millimeters wide, generally glabrous with a small ligule less than 3 millimeters long. The spikelets have glabrous glumes and lemmas that are rounded on the back, sometimes with marginal hairs and short awns up to 3 millimeters long.

Habitat: Disturbed sites, roadsides

Bloom period: Mar-Aug

Elevation: < 2700 m

Bioregions: NCo, KR, NCoRI, CaRH, SNH (e slope), SCoRO, SCo, SnGb, SnBr, PR, GB

California counties: Butte, Mono, Riverside, San Bernardino, Tehama, Ventura, El Dorado, Los Angeles, Tuolumne, Kern, San Diego, Alpine, Placer, Modoc, Shasta, Tulare, Siskiyou, Santa Barbara, Nevada, Monterey, Mariposa, Lassen, Plumas, Sierra, Trinity, Humboldt, San Luis Obispo, Yolo, Alameda, Lake, Santa Clara

Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Jepson eFlora, Cal-IPC, and more.