Calflora, a 501c3 non-profit
Distribution by County   4071    
Hemizonia congesta  DC.  ssp. tracyi  Babc. & H. M. Hall
Hayfield tarweed,   Tracy's tarplant
Hemizonia congesta ssp. tracyi is an annual herb that is native to California, and endemic (limited) to California.
also called Hemizonia tracyi
California Rare Plant Rank: 4.3 (limited distribution).
Record Count by County

Colusa: 3 Humboldt: 77 Mendocino: 15 Trinity: 12

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:   (Accessed: 06/12/2024).