Swaziland's Alien Plants Database

Sonchus oleraceus L.
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
More information:
NRCS Plants Database


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

map key

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