Calflora, a 501c3 non-profit
Distribution by County   4429    
Juglans californica  S. Watson  var. californica 

(not an active name)
Southern california black walnut
Juglans californica var. californica is a tree that is native to California, and endemic (limited) to California.
also called Juglans californica
Record Count by County

Alameda: 1 Lassen: 1 San Benito: 4 Sonoma: 4
Butte: 3 Los Angeles: 1467 San Bernardino: 148 Stanislaus: 1
Calaveras: 6 Mariposa: 2 San Diego: 53 Tehama: 1
Contra Costa: 5 Monterey: 5 San Luis Obispo: 12 Tulare: 1
El Dorado: 4 Napa: 1 San Mateo: 2 Ventura: 407
Fresno: 6 Nevada: 3 Santa Barbara: 49 Yolo: 1
Inyo: 1 Orange: 168 Santa Clara: 5
Kern: 6 Riverside: 77 Shasta: 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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 05/04/2024).