Calflora, a 501c3 non-profit
Distribution by County   7086    
Rhamnus tomentella  Benth.  ssp. tomentella 

(not an active name)
Chaparral coffee berry, Hoary coffeeberry
Rhamnus tomentella ssp. tomentella is a shrub that is native to California, and found only slightly beyond California borders.
New name: Frangula californica ssp. tomentella
Record Count by County

Alameda: 21 Los Angeles: 15 Riverside: 5 Sonoma: 25
Amador: 13 Madera: 1 Sacramento: 13 Stanislaus: 5
Butte: 123 Mariposa: 11 San Benito: 8 Sutter: 13
Calaveras: 8 Mendocino: 4 San Bernardino: 5 Tehama: 32
Colusa: 14 Merced: 1 San Diego: 171 Trinity: 13
Contra Costa: 18 Mono: 1 San Luis Obispo: 20 Tulare: 21
El Dorado: 30 Monterey: 98 San Mateo: 13 Tuolumne: 19
Fresno: 13 Napa: 19 Santa Barbara: 49 Ventura: 49
Glenn: 5 Nevada: 18 Santa Clara: 41 Yolo: 4
Inyo: 4 Orange: 7 Santa Cruz: 9 Yuba: 21
Kern: 33 Placer: 19 Shasta: 33
Lake: 24 Plumas: 1 Solano: 1

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]. 2026. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 05/16/2026).