Calflora, a 501c3 non-profit
Distribution by County   7965    
Thelypodium stenopetalum  S. Watson
Slender petaled thelypodium,   Slenderpetal thelypody
Thelypodium stenopetalum is a perennial herb that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).
State of California status: Endangered. Federal status: Endangered.
Record Count by County

Mariposa: 1 Riverside: 1 San Bernardino: 34

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]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 04/10/2025).