Calflora
Taxon  Report   2052    
Chorizanthe robusta  Parry  var. hartwegii  (Benth.) Reveal & Rand. Morgan
Robust spineflower,  Scott's valley spineflower
Chorizanthe robusta var. hartwegii
© 1994 Dean Wm. Taylor
Photos from
CalPhotos / Calflora
Chorizanthe robusta var. hartwegii
© 2015 John Doyen
Chorizanthe robusta var. hartwegii
© 2015 John Doyen
Chorizanthe robusta var. hartwegii, a dicot, is an annual herb that is native to California, is endemic (limited) to California.
CNPS Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).   8th Edition

It is listed 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 robusta var. hartwegii
© 2018 Lynn Overtree
Communities: Valley Grassland

Habitat: meadows

Name Status:
Accepted by JEF + CNPS + PLANTS

Alternate Names:
PLANTS: Chorizanthe douglasii var. hartwegii
PLANTS: Chorizanthe pungens var. hartwegii
More information about  Chorizanthe robusta var. hartwegii
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

USDA PLANTS Profile (CHROH)

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 18, 2018).