Cirsium undulatum Calflora

Calflora, a 501c3 non-profit

Taxon Report

Cirsium undulatum (Nutt.) Spreng.

Wavy leaved thistle, Wavyleaf thistle

2020 Chris McDonald

2010 Lee Dittmann

2015 Richard Spellenberg

Cirsium undulatum is a perennial herb that is not native to California.

also called Cirsium canescens


	Plant Range Observation Search ~25 records in California Plant Characteristics

Bloom Period

Photos on Calflora


Genus:	Cirsium
Family:	Asteraceae
Category:	angiosperm
PLANTS group:	Dicot
Jepson eFlora section: eudicot

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Name Status:
Accepted by JEF + PLANTS + POWO

Information about Cirsium undulatum from other sources


Jepson eFlora USDA PLANTS Profile (CIUN) Photos on Calflora Photos on CalPhotos Google Images Photos on iNaturalist	ITIS Original Publication citation International Plants Names Index Search efloras.org (Flora of North America) BONAP Distribution Map Consortium of California Herbaria 2	Add an Observation Location Suitability Distribution by County
photos / record / common / links

Suggested Citation

Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/ (Accessed: 07/12/2025).