Related species: Castilleja ambigua ssp. humboldtiensis Castilleja ambigua var. humboldtiensis Castilleja ambigua ssp. insalutata Castilleja ambigua var. insalutata Castilleja ambigua ssp. ambigua Castilleja ambigua var. ambigua Castilleja ambigua var. meadii
Plant Communities: Northern Coastal Scrub Coastal Salt Marsh wetland-riparian
Synonyms: Orthocarpus castillejoides
Counties: Alameda Contra Costa Del Norte Humboldt Marin Mendocino Monterey Napa Nevada Santa Cruz San Francisco San Luis Obispo San Mateo Solano Sonoma Tehama