Taxon  Report   7843    
Streptanthus howellii  S. Watson
Howell's jewel flower,  Howell's jewelflower
Streptanthus howellii
© 1990 Dean Wm. Taylor
Photos from
CalPhotos / Calflora
Streptanthus howellii
© 2005 Shawn DeCew
Streptanthus howellii
© 2005 Shawn DeCew
Streptanthus howellii, a dicot, is a perennial herb that is native to California, Oregon.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).   8th Edition

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
Streptanthus howellii
© Rick York and CNPS
Genus: Streptanthus
Communities: Yellow Pine Forest

Serpentine affinity: 6.1; (strict endemic)

Name Status:
Accepted by JEF + CNPS + PLANTS

More information about  Streptanthus 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).