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.
Record Count by County

Alameda: 1 Lake: 58 Santa Cruz: 1 Yuba: 1
Butte: 2 Mendocino: 53 Sonoma: 19
Colusa: 10 Napa: 12 Tehama: 13
Humboldt: 5 Plumas: 1 Trinity: 11

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).