Calflora, a 501c3 non-profit
Distribution by County   9403    
Quercus suber  L.
Cork oak
Quercus suber is a tree or shrub that is not native to California.
Record Count by County

Alameda: 1 Orange: 7 San Joaquin: 2 Solano: 2
Butte: 17 Placer: 1 San Luis Obispo: 1 Sonoma: 2
Contra Costa: 2 Riverside: 1 San Mateo: 9 Stanislaus: 3
Los Angeles: 6 Sacramento: 14 Santa Barbara: 6 Tulare: 1
Marin: 3 San Benito: 1 Santa Clara: 7 Yolo: 4
Merced: 1 San Diego: 1 Santa Cruz: 2
Monterey: 1 San Francisco: 3 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]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 11/10/2025).