Calflora, a 501c3 non-profit
Distribution by County   4055    
Helianthus petiolaris  Nutt.  ssp. petiolaris 
Prairie sunflower
Helianthus petiolaris ssp. petiolaris is a perennial herb that is not native to California.
Record Count by County

Lassen: 1 San Bernardino: 6 San Diego: 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]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 09/29/2023).