Calflora, a 501c3 non-profit
Distribution by County   1218    
Bromus tectorum  L.
Cheatgrass, downy brome,   Downy brome grass,   Downy chess
Bromus tectorum is an annual grasslike herb that is not native to California.
Cal-IPC rating: high
Record Count by County

Alameda: 11 Kings: 5 Orange: 23 Sierra: 108
Alpine: 82 Lake: 30 Placer: 140 Siskiyou: 220
Amador: 4 Lassen: 1098 Plumas: 320 Solano: 3
Butte: 42 Los Angeles: 486 Riverside: 882 Sonoma: 63
Calaveras: 17 Madera: 139 Sacramento: 11 Stanislaus: 3
Colusa: 11 Marin: 515 San Benito: 41 Sutter: 5
Contra Costa: 4 Mariposa: 1226 San Bernardino: 597 Tehama: 162
El Dorado: 201 Mendocino: 23 San Diego: 321 Trinity: 107
Fresno: 349 Merced: 13 San Luis Obispo: 49 Tulare: 364
Glenn: 12 Modoc: 631 San Mateo: 19 Tuolumne: 353
Humboldt: 26 Mono: 590 Santa Barbara: 54 Ventura: 94
Imperial: 7 Monterey: 63 Santa Clara: 9 Yolo: 8
Inyo: 964 Napa: 51 Santa Cruz: 22 Yuba: 10
Kern: 751 Nevada: 181 Shasta: 295

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 11/21/2024).