Calflora, a 501c3 non-profit
Distribution by County   13028    
Castilleja densiflora  (Benth.) T.I. Chuang & Heckard  var. obispoensis  (D.D. Keck) J.M. Egger
San luis obispo owl's-clover
Castilleja densiflora var. obispoensis is an annual herb that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).   CNDDB
Record Count by County

Monterey: 2 San Luis Obispo: 93 Santa Barbara: 1

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]. 2022. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 12/02/2022).