Castilleja ambigua ssp. humboldtiensis Calflora

Distribution by County 1674

Castilleja ambigua Hook. & Arn. ssp. humboldtiensis (D. D. Keck) T. I. Chuang & Heckard

Humboldt bay owl's clover

Castilleja ambigua ssp. humboldtiensis is an annual herb (hemiparasitic) that is native to California, and endemic (limited) to California.

California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).

Record Count by County


Humboldt: 77	Marin: 12	Mendocino: 7

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).