Taxon  Report   2146    
Cirsium quercetorum  (A. Gray) Jeps.
Alameda county thistle,  Brownie thistle
Cirsium quercetorum
© 2007 Neal Kramer
Photos from
CalPhotos / Calflora
Cirsium quercetorum
© 2010 Zoya Akulova
Cirsium quercetorum
© 2010 Robert Steers/NPS
Cirsium quercetorum, a dicot, is an annual or perennial herb that is native to California, is endemic (limited) to California.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Cirsium quercetorum
© 2018 Abbot Chambers
Genus: Cirsium
Communities: Mixed Evergreen Forest, Coastal Prairie
Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Cirsium quercetorum var. mendocinum
PLANTS: Cirsium quercetorum var. quercetorum
PLANTS: Cirsium quercetorum var. walkerianum
. . .
More information about  Cirsium quercetorum
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 21, 2019).