Swaziland's Alien Plants Database

Sonchus oleraceus L. ASTERACEAE annual sowthistle, common sowthistle, hare's lettuce, colewort, milk thistle Unknown, Minor problem species Origin: Eurasia Growth Form: Herb Plant Description: Erect, annual herbs up to 0.8 high, with well developed fibrous taproots. Leaves alternate, variously lobed and dentate. Leaves are generally flaccid and are weakly prickly or have no prickles at all Key Features: less robust than S. asper, less prickly or no prickles Control: Comments: More information: NRCS Plants Database Illustration USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Photo - flowers/leaves William S. Justice @ USDA-NRCS PLANTS Database Photo - flowers/leaves Larry Allain @ USDA-NRCS PLANTS Database Photo - plant The Weeds Society of Western Australia

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