Calflora, a 501c3 non-profit
Distribution by County   11463    
Carduus acanthoides  L.  ssp. acanthoides 
Plumeless thistle
Carduus acanthoides ssp. acanthoides is a perennial herb that is not native to California.
Record Count by County

Calaveras: 6 Monterey: 1 Sonoma: 1
Marin: 3 Nevada: 2

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]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 09/25/2023).