Calflora, a 501c3 non-profit
Distribution by County   2129    
Cirsium fontinale  (Greene) Jeps.  var. campylon  (H. Sharsm.) D. J. Keil & C. E. Turner
Mt hamilton thistle,   Mt. hamilton thistle
Cirsium fontinale var. campylon is a perennial herb that is native to California, and endemic (limited) to California.
also called Cirsium campylon
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
Record Count by County

Alameda: 8 Santa Clara: 90 Stanislaus: 45

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:   (Accessed: 06/21/2024).