Taxon  Report   4067    
Hemizonia congesta  DC.  ssp. clevelandii  (Greene) Babc. & H. M. Hall
Cleveland's tarweed,  Hayfield tarweed
Hemizonia congesta ssp. clevelandii, a dicot, is an annual herb that is native to California, is also found outside of California, but is confined to western North America.

Bloom Period
Genus: Hemizonia
Parent: Hemizonia congesta
Communities: Southern Oak Woodland, Foothill Woodland, Valley Grassland
Name Status:
Accepted by JEF + PLANTS

Alternate Names:
JEF + PLANTS: Hemizonia clevelandii
More information about  Hemizonia congesta ssp. clevelandii
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora


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]. 2020. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: May 25, 2020).