Calflora, a 501c3 non-profit
Distribution by County   4066    
Hemizonia congesta  DC.  ssp. calyculata  Babc. & H. M. Hall
Hayfield tarweed,   Mendocino tarplant
Hemizonia congesta ssp. calyculata is an annual herb that is native to California, and endemic (limited) to California.
also called Hemizonia calyculata
California Rare Plant Rank: 4.3 (limited distribution).
Record Count by County

Lake: 9 Mendocino: 49 Shasta: 1

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).