Calflora
Taxon  Report   10384    
Sonchus asper  (L.) Hill
Spiny sowthistle
Sonchus asper, a dicot, is an annual herb that is not native to California; it was introduced from elsewhere and naturalized in the wild.
Observation Hotline
(observation details)
one or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Family: ASTERACEAE  
Genus: Sonchus
Subspecies and Varieties:

Wetlands:
Arid West: Equally likely to occur in wetlands and non wetlands
Mountains, Valleys and Coast: Occurs usually in non wetlands, occasionally in wetlands

Habitat: disturbed

Communities: weed, characteristic of disturbed places, wetland-riparian

Name Status:
Accepted by ICPN + PLANTS

Alternate Names:
PLANTS: Sonchus asper ssp. glaucescens
PLANTS: Sonchus nymanii
More information about  Sonchus asper
UC Integrated Pest Management Weed Photo Gallery
(profile of this plant as an agricultural weed)

Search efloras.org (Flora of North America)

Photos on PlantID.net   /   Google Images

Consortium of California Herbaria


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: Feb 23, 2019).