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Distribution by County   9794    
Cephalanthus occidentalis  L.
Common buttonbush
Cephalanthus occidentalis is a shrub that is native to California, and also found elsewhere in western North America.
Record Count by County

Alameda: 1 Glenn: 18 Monterey: 1 Sonoma: 1
Amador: 4 Kern: 53 Napa: 6 Stanislaus: 34
Butte: 97 Kings: 5 Nevada: 20 Sutter: 49
Calaveras: 7 Lake: 28 Placer: 23 Tehama: 32
Colusa: 24 Madera: 80 Sacramento: 166 Tulare: 75
Contra Costa: 19 Mariposa: 24 San Joaquin: 89 Tuolumne: 11
El Dorado: 36 Mendocino: 1 Shasta: 71 Yolo: 60
Fresno: 99 Merced: 26 Solano: 78 Yuba: 38

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: 12/11/2025).