Castilleja exserta Calflora

Calflora, a 501c3 non-profit

Taxon Report

Castilleja exserta (A. Heller) T. I. Chuang & Heckard

Owl's clover, Purple owl's clover

Castilleja exserta is an annual herb that is native to California, and also found elsewhere in western North America.


	Plant Range Observation Search ~4235 records in California Plant Characteristics

Bloom Period

Photos on Calflora


Subspecies and Varieties:
... ssp. exserta ... ssp. latifolia ... ssp. venusta
Genus:	Castilleja
Family:	Orobanchaceae (Scrophulariaceae)
Category:	angiosperm
PLANTS group:	Dicot
Jepson eFlora section: eudicot

Communities: Coastal Strand, Northern Coastal Scrub, Coastal Sage Scrub, Creosote Bush Scrub, Foothill Woodland, Chaparral, Valley Grassland, Joshua Tree Woodland

Name Status:
Accepted by JEF + PLANTS + POWO

Alternate Names:


JEF	Orthocarpus purpurascens

Information about Castilleja exserta from other sources


Nursery availability from CNPLX This plant is available commercially. Jepson eFlora USDA PLANTS Profile (CAEX14) Photos on Calflora Photos on CalPhotos Google Images Photos on iNaturalist ID Tips on PlantID.net	ITIS Original Publication citation International Plants Names Index Search efloras.org (Flora of North America) Landscape information from Calscape BONAP Distribution Map Consortium of California Herbaria 2 Search the Native American Ethnobotany Database	Add an Observation Location Suitability Planting Guide Distribution by County
photos / record / common / links

Suggested Citation

Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/ (Accessed: 03/29/2025).