Calflora, a 501c3 non-profit
Distribution by County   2146    
Cirsium quercetorum  (A. Gray) Jeps.
Alameda county thistle,   Brownie thistle
Cirsium quercetorum is an annual or perennial herb that is native to California, and endemic (limited) to California.
Record Count by County

Alameda: 9 Marin: 209 San Benito: 13 Santa Cruz: 2
Contra Costa: 9 Mendocino: 61 San Francisco: 8 Solano: 4
Humboldt: 2 Monterey: 23 San Luis Obispo: 4 Sonoma: 72
Lake: 1 Napa: 3 San Mateo: 118

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: 11/23/2024).