Taxon  Report   2032    
Chorizanthe howellii  Goodman
Howell's spineflower,  Mendocino spineflower
Chorizanthe howellii
© 2009 Vernon Smith
Photos from
CalPhotos / Calflora
Chorizanthe howellii
© Rick York and CNPS
Chorizanthe howellii, a dicot, is an annual herb that is native to California, is endemic (limited) to California.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).   8th Edition

It is listed by the State of California as Threatened and by the Federal Government as 'Endangered '.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Chorizanthe howellii
© 2016 Asa B Spade
Genus: Chorizanthe
Communities: Coastal Strand, Coastal Prairie, Northern Coastal Scrub

Habitat: dunes, coastal

Name Status:
Accepted by ICPN + CNPS + PLANTS

More information about  Chorizanthe howellii
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation


Search the International Plants Names Index

Search (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]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jan 23, 2019).