Calflora, a 501c3 non-profit
Distribution by County   10319    
Rubus armeniacus  Focke
Himalayan blackberry,   black berry,   Armenian blackberry
Rubus armeniacus is a shrub that is not native to California.
Cal-IPC rating: high
Record Count by County

Alameda: 133 Kings: 8 Placer: 98 Shasta: 429
Alpine: 4 Lake: 38 Plumas: 497 Sierra: 30
Amador: 19 Lassen: 5 Riverside: 18 Siskiyou: 116
Butte: 262 Los Angeles: 291 Sacramento: 517 Solano: 155
Calaveras: 47 Madera: 63 San Benito: 10 Sonoma: 1152
Colusa: 54 Marin: 3202 San Bernardino: 62 Stanislaus: 71
Contra Costa: 167 Mariposa: 1019 San Diego: 63 Sutter: 57
Del Norte: 64 Mendocino: 204 San Francisco: 473 Tehama: 144
El Dorado: 136 Merced: 49 San Joaquin: 90 Trinity: 135
Fresno: 89 Modoc: 3 San Luis Obispo: 31 Tulare: 44
Glenn: 84 Monterey: 25 San Mateo: 178 Tuolumne: 630
Humboldt: 697 Napa: 237 Santa Barbara: 16 Ventura: 9
Inyo: 7 Nevada: 96 Santa Clara: 199 Yolo: 123
Kern: 10 Orange: 84 Santa Cruz: 187 Yuba: 137

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: 12/04/2025).