Bromus arizonicus

Arizona brome

Family: Poaceae · Type: annual · Native

Arizona brome is a California native annual grass found in southern North Coast Ranges, Great Valley, San Francisco Bay Area, southern Coast Ranges, southern California Coast, Channel Islands, and desert regions in open, disturbed places and fields at elevations below 2,200 meters. Flowering from March to June, this grass produces pale green to straw-colored spikelets 18 to 25 millimeters long with delicate branching inflorescences. Growing 40 to 90 centimeters tall with ascending to erect stems, it develops spreading lower branches in its grass clusters. Its leaves are glabrous or slightly hairy, with narrow blades 1.5 to 10 millimeters wide and short ligules 1 to 2 millimeters long. The grass produces lemmas with distinctive 7 to 15 millimeter awns, typically with hairy margins and backs.

Habitat: Open, disturbed places, fields

Bloom period: Mar-Jun

Elevation: < 2200 m

Bioregions: s NCoRO, GV, SnFrB, SCoR, SCo, ChI, D

California counties: San Bernardino, Kern, Los Angeles, Monterey, Orange, Riverside, San Diego, San Joaquin, Santa Barbara, Yolo, Fresno, San Francisco, Ventura, Merced, Yuba, Tuolumne, Tulare, Kings, San Luis Obispo, Sonoma, Mendocino, Stanislaus, El Dorado, Alameda, Napa

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