Carduus pycnocephalus Calflora

Calflora

Taxon Report 1504

Carduus pycnocephalus L.

Italian thistle

Photos from
CalPhotos / Calflora

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


	Interactive Distribution Map Observation Hotline (observation details) point, line, or polygon one or more occurrences within a 7.5-minute quadrangle

Plant Characteristics
and Associations

Bloom Period


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Location Suitability
Distribution by County


Family:	ASTERACEAE
Genus:	Carduus
Subspecies and Varieties:
... ssp. pycnocephalus

Communities: weed, characteristic of disturbed places

Habitat: disturbed

Name Status:
Accepted by ICPN + PLANTS

More information about Carduus pycnocephalus


Photos on PlantID.net / Google Images	Jepson eFlora Records from the Consortium of California Herbaria ITIS Original Publication citation USDA PLANTS Profile (CAPY2)	Search the International Plants Names Index Search efloras.org (Flora of North America) website references from Google

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: Jan 18, 2019).