Calflora
Taxon  Report   2124    
Cirsium cymosum  (Greene) J. T. Howell
Peregrine thistle
Cirsium cymosum
© 2009 Keir Morse
Photos from
CalPhotos / Calflora
Cirsium cymosum
© 2009 Keir Morse
Cirsium cymosum
© 2009 Julie Kierstead Nelson
Cirsium cymosum, a dicot, is a perennial herb that is native to California, is also found outside of California, but is confined to western North America.

Interactive Distribution Map


Observation Hotline
(observation details + photos)



point, line, or polygon

Plant Characteristics
and Associations



Bloom Period
Cirsium cymosum
© 2018 Joseph Belli
Family: ASTERACEAE  
Genus: Cirsium
Subspecies and Varieties:
Communities: Mixed Evergreen Forest, Chaparral, Foothill Woodland, Yellow Pine Forest

Serpentine affinity: 3; (strong indicator)

Habitat: slopes

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Cirsium triacanthum
More information about  Cirsium cymosum
Nursery / seed vendor availability from CNPLX
Commercial availability unknown.
Landscaping information from Calscape
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation

USDA PLANTS Profile (CICY)

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: Nov 16, 2018).

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