Calflora
Taxon  Report   1504    
Carduus pycnocephalus  L.
Italian thistle
Carduus pycnocephalus, a dicot, is an annual herb that is not native to California; it was introduced from elsewhere and naturalized in the wild. Cal-IPC rating: Moderate
Observation Hotline
(observation details)
one or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Family: ASTERACEAE  
Genus: Carduus
Subspecies and Varieties:
Habitat: disturbed

Communities: weed, characteristic of disturbed places

Name Status:
Accepted by ICPN + PLANTS

 
More information about  Carduus pycnocephalus

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: https://www.calflora.org/   (Accessed: May 23, 2019).