Vascular Plants of the Gila Wilderness

Presented in Association with the
Western New Mexico University Department of Natural Sciences

Sonchus oleraceus Linnaeus
(Annual Sow Thistle, Common Sow Thistle)

Family: Asteraceae

Status: Exotic

Synonyms:
None

Sonchus oleraceus is very similar to Sonchus asper, except that it is less prickly and the auricles are more acute. The mature achenes are transversely tuberculate, unlike Sonchus asper in which the achenes only many nerved.
Please click on an image for a larger file.



Sonchus oleraceus, photo Russ Kleinman, Silver City, Oct. 26, 2007



Sonchus oleraceus, inflorescence, photo Russ Kleinman, Silver City, Oct. 26, 2007



Sonchus oleraceus, angled auricle of leaf, photo Russ Kleinman, Silver City, Oct. 26, 2007


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