Calflora
Taxon  Report   1694    
Castilleja exserta  (A. Heller) T. I. Chuang & Heckard
Owl's clover,  Purple owl's clover
Castilleja exserta
© 2018 Saskia Raether
Photos from
CalPhotos / Calflora
Castilleja exserta
© 2017 B.J. Dion
Castilleja exserta
© 2008 Franco Folini
Castilleja exserta, a dicot, is an annual herb that is native to California, is also found outside of California, but is confined to western North America.

Interactive Distribution Map


Observation Hotline
(observation details)



point, line, or polygon

Plant Characteristics
and Associations



Bloom Period
Castilleja exserta
© 2006 Steve Matson
Communities: Valley Grassland, Coastal Sage Scrub, Foothill Woodland, Coastal Strand, Northern Coastal Scrub, Creosote Bush Scrub, Joshua Tree Woodland, Chaparral

Habitat: coastal

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
ICPN: Orthocarpus purpurascens
ICPN: Orthocarpus exsertus
More information about  Castilleja exserta
Nursery / seed vendor availability from CNPLX
This plant is available commercially.
Landscaping information from Calscape
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation

USDA PLANTS Profile (CAEX14)

Search the International Plants Names Index

Search efloras.org (Flora of North America)

website references from Google


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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Dec 17, 2018).