Calflora, a 501c3 non-profit
Distribution by County   11498    
Centaurea virgata  Lam.  ssp. squarrosa  (Boiss.) Gugler.
Squarrose knapweed
Centaurea virgata ssp. squarrosa is a perennial herb that is not native to California.
Record Count by County

Inyo: 1 Modoc: 6 Plumas: 4 Siskiyou: 17
Lassen: 6 Napa: 1 Shasta: 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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 11/21/2024).