Asclepias asperula ssp. asperula Calflora

Distribution by County 738

Asclepias asperula (Decne.) Woodson ssp. asperula

Antelope horns, Spider milkweed

Asclepias asperula ssp. asperula is a perennial herb that is native to California, and also found elsewhere in western North America.

California Rare Plant Rank: 4.3 (limited distribution).

Record Count by County


San Bernardino: 43

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: 11/21/2024).