Calflora
Taxon  Report   13016    
Castilleja ambigua  (Hook. & Arn.) T.I. Chuang & Heckard  var. humboldtiensis  (D.D. Keck) J.M. Egger
Humboldt bay owl's-clover
Castilleja ambigua var. humboldtiensis, a dicot, is an annual herb that is native to California, and is endemic (limited) to California.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).   8th Edition
Observation Hotline
(observation details)
one or more occurrences
within a 7.5-minute quadrangle
Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Habitat: salt-marsh, coastal

Communities: Coastal Salt Marsh, wetland-riparian

Name Status:
Accepted by CNPS

Alternate Names:
CNPS: Castilleja ambigua ssp. humboldtiensis
More information about  Castilleja ambigua var. humboldtiensis
Nursery availability from CNPLX
Commercial availability unknown.
Search efloras.org (Flora of North America)

Landscape information from Calscape

Photos on PlantID.net   /   Google Images

Consortium of California Herbaria


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]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Jun 17, 2019).