Asclepias solanoana Calflora

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: 28
Glenn: 4	Napa: 23	Tehama: 62
Lake: 27	Shasta: 17	Trinity: 103

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: 04/01/2025).