Taxon  Report   13008 
Howellanthus dalesianus  (J.T.Howell) Walden & R.Patt.
Scott mountain phacelia
Howellanthus dalesianus
© 2006 Penn Martin II
More photos from
CalPhotos / Calflora
Howellanthus dalesianus
© 2008 Aaron Schusteff
Howellanthus dalesianus
© 2008 Aaron Schusteff
Howellanthus dalesianus, a dicot, is a perennial herb that is native to California.
CNPS Rare Plant Rank: 4.3 (limited distribution).   8th Edition

Interactive Distribution Map

Observation Hotline
(observation details + photos)

point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period
Howellanthus dalesianus
© 2011 Steve Matson
Genus: Howellanthus
AFFINITY to serpentine soil:   6.1 (strict endemic)   [Safford et al 2005]
Distribution by County 

Add an Observation of  Howellanthus dalesianus

Name Status:
Accepted by JEFR + PLANTS
Alternate Names:
(according to)

JEFR + PLANTS: Phacelia dalesiana
More information about  Howellanthus dalesianus
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on CalPhotos / Google Images
Photos on

Jepson eFlora

Records from the Consortium of California Herbaria

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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Apr 19, 2018).

The information on this page comes from diverse sources. None of the links are sponsored.