Calflora, a 501c3 non-profit
Distribution by County   750    
Asclepias solanoana  Woodson
Serpentine milkweed,   Solanoa
Asclepias solanoana is a perennial herb that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 4.2 (limited distribution).
Record Count by County

Colusa: 18 Mendocino: 39 Sonoma: 27
Glenn: 5 Napa: 23 Tehama: 53
Lake: 26 Shasta: 15 Trinity: 88

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: 05/16/2024).