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Distribution by County   1208    
Bromus madritensis  L.  ssp. madritensis 
Foxtail chess
Bromus madritensis ssp. madritensis is an annual grasslike herb that is not native to California.
Record Count by County

Alameda: 34 Lake: 12 Riverside: 675 Sierra: 2
Amador: 17 Los Angeles: 541 Sacramento: 10 Siskiyou: 1
Butte: 135 Madera: 18 San Benito: 226 Solano: 11
Calaveras: 32 Marin: 68 San Bernardino: 313 Sonoma: 21
Colusa: 15 Mariposa: 159 San Diego: 924 Stanislaus: 21
Contra Costa: 46 Mendocino: 10 San Francisco: 11 Sutter: 8
Del Norte: 1 Merced: 52 San Joaquin: 1 Tehama: 126
El Dorado: 57 Mono: 8 San Luis Obispo: 102 Trinity: 3
Fresno: 354 Monterey: 29 San Mateo: 87 Tulare: 109
Humboldt: 3 Napa: 7 Santa Barbara: 133 Tuolumne: 271
Inyo: 261 Nevada: 7 Santa Clara: 133 Ventura: 599
Kern: 181 Orange: 168 Santa Cruz: 5 Yolo: 1
Kings: 1 Placer: 27 Shasta: 11 Yuba: 33

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]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 11/18/2025).