Cirsium hydrophilum var. hydrophilum Calflora

Distribution by County 2133

Cirsium hydrophilum (Greene) Jeps. var. hydrophilum

Suisun thistle

Cirsium hydrophilum var. hydrophilum 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).

Federal status: Endangered.

Record Count by County


Solano: 19

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: 04/04/2025).