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Taxon  Report  
Carduus tenuiflorus  Curtis
Italian thistle,   Slender flowered thistle,   Winged plumeless thistle
Carduus tenuiflorus is an annual herb that is not native to California.
Cal-IPC rating: limited
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Observation Search
~1377 records in California
redone or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Genus: Carduus
Family: Asteraceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Name Status:
Accepted by JEF + PLANTS

Information about  Carduus tenuiflorus from other sources

[Wikipedia] Origins: [Wikipedia] Carduus tenuiflorus is native to western North Africa in: northern Algeria; Morocco; and Tunisia, and much of Europe in: Belgium; France, including Corsica; Ireland; Italy, including Sardinia and Sicily; the Netherlands; Portugal, Spain, including the Baleares (Balearic Islands); and the United Kingdom. It has become naturalised in Macaronesia, South Africa, India, Australasia, Southern South America, regions of the United States, and elsewhere. It is an invasive species in California. (link added by Jessica Johnston)

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 07/22/2024).