Calflora, a 501c3 non-profit
Distribution by County   2325    
Conyza canadensis  (L.) Cronquist

(not an active name)

Canada horseweed,   Canadian horseweed
Conyza canadensis is an annual herb that is native to California, and also found elsewhere in North America and beyond.

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: 02/04/2023).