Taxon  Report   2121 
Cirsium ciliolatum  (L. Henderson) J. Howell
Ashland thistle
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Cirsium ciliolatum, a dicot, is a perennial herb that is native to California and Oregon.
It is included in the CNPS Inventory of Rare and Endangered Plants on list 2B.1 (rare, threatened, or endangered in CA; common elsewhere).   7th Edition  /  8th Edition

It is listed by the State of California as Endangered .

Interactive Distribution Map


Observation Hotline
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point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations



Bloom Period
Family: ASTERACEAE  
Genus: Cirsium
Communities:
Valley Grassland, Foothill Woodland
Distribution by County 

Add an Observation of  Cirsium ciliolatum

Name Status:
Accepted by TJM2 + CNPS + PLANTS + JM93
Alternate Names:
(according to)

PLANTS: Cirsium botrys
PLANTS: Cirsium howellii
More information about  Cirsium ciliolatum
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Photos on CalPhotos / Google Images
website references from Google

Jepson eFlora

Records from the Consortium of California Herbaria

USDA PLANTS Profile (CICI)

Original Publication citation (ITIS)

Search the International Plants Names Index

Search efloras.org (Flora of North America)

Search the Lady Bird Johnson Wildflower Center


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]. 2016. Berkeley, California: The Calflora Database [a non-profit organization].
Available: http://www.calflora.org/   (Accessed: May 04, 2016).

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