Calflora, a 501c3 non-profit
Distribution by County   1767    
Ceanothus cordulatus  Kellogg
Mountain whitethorn
Ceanothus cordulatus is a shrub that is native to California, and also found elsewhere in western North America.
Record Count by County

Alpine: 32 Humboldt: 25 Modoc: 2 Sierra: 67
Amador: 14 Inyo: 37 Mono: 19 Siskiyou: 45
Butte: 30 Kern: 34 Nevada: 50 Solano: 1
Calaveras: 10 Lake: 5 Placer: 200 Tehama: 31
Colusa: 3 Lassen: 23 Plumas: 149 Trinity: 70
Del Norte: 3 Los Angeles: 75 Riverside: 57 Tulare: 256
El Dorado: 203 Madera: 18 San Bernardino: 120 Tuolumne: 49
Fresno: 96 Mariposa: 67 San Diego: 5 Ventura: 29
Glenn: 5 Mendocino: 16 Shasta: 24 Yuba: 3

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: 01/18/2026).