Calflora, a 501c3 non-profit
Distribution by County   2150    
Cirsium undulatum  (Nutt.) Spreng.
Wavy leaved thistle,   Wavyleaf thistle
Cirsium undulatum is a perennial herb that is not native to California.
also called Cirsium canescens
Record Count by County

Alameda: 3 Modoc: 3 San Bernardino: 3 Sierra: 1
Contra Costa: 1 Placer: 1 San Diego: 4
Lassen: 6 Plumas: 2 Shasta: 1

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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 11/21/2024).