Taxon  Report   2032    
Chorizanthe howellii  Goodman
Howell's spineflower,  Mendocino spineflower
Chorizanthe howellii, a dicot, is an annual herb that is native to California and and is endemic (limited) to California.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).   CNPS Inventory

It is listed by the State of California as Threatened and by the Federal Government as 'Endangered '.
Observation Search
(40 records)
one or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Genus: Chorizanthe
Habitat: dunes, coastal

Communities: Coastal Strand, Coastal Prairie, Northern Coastal Scrub

Name Status:
Accepted by CNPS + PLANTS

More information about  Chorizanthe howellii
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora


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]. 2020. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: Jun 06, 2020).