Taxon  Report   2149    
Cirsium scariosum  Nutt.
Dwarf thistle,  Elk thistle
Cirsium scariosum
© 2008 Neal Kramer
Photos from
CalPhotos / Calflora
Cirsium scariosum
© 2019 Julie Kierstead Nelson
Cirsium scariosum
© 2016 Julie Kierstead Nelson
Cirsium scariosum, a dicot, is a perennial herb that is native to California, is also found elsewhere in North America and beyond.

Interactive Distribution Map

Observation Hotline
(observation details)

point, line, or polygon

Plant Characteristics
and Associations

Bloom Period
Cirsium scariosum
© 2019 Julie Kierstead Nelson
Communities: Sagebrush Scrub, Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Subalpine Forest, Southern Oak Woodland

Wetlands: Equally likely to occur in wetlands and non wetlands

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
PLANTS: Carduus americanus
PLANTS: Cirsium drummondii var. oregonense
PLANTS: Cirsium erosum
. . .
More information about  Cirsium scariosum
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 22, 2019).