Calflora, a 501c3 non-profit
Distribution by County   1663    
Carthamus leucocaulos  Sibth. & Sm.
White stemmed distaff thistle,   Whitestem distaff thistle
Carthamus leucocaulos is an annual herb that is not native to California.
Record Count by County

San Mateo: 1 Shasta: 1 Sonoma: 11

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]. 2023. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 03/25/2023).