Calflora, a 501c3 non-profit
Distribution by County   4067    
Hemizonia congesta  DC.  ssp. clevelandii  (Greene) Babc. & H. M. Hall
Cleveland's tarweed,   Hayfield tarweed
Hemizonia congesta ssp. clevelandii is an annual herb that is native to California, and also found elsewhere in western North America.

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: 02/01/2023).