Definition of Sonchus in US English:


(also sonchus)


  • Originally: any of several common European sowthistles, especially prickly sowthistle, Sonchus asper. In later use also (in form Sonchus): a genus of the family Asteraceae (Compositae) comprising the sowthistles, which are herbaceous plants and shrubs native to Eurasia, tropical Africa, and Australasia, typically having deeply cut leaves and yellow, dandelion-like flower heads, and containing milky latex; (also sonchus) any plant of this genus.


Mid 16th century; earliest use found in William Bullein (c1515–1576), physician. From classical Latin soncus (also soncos, in post-classical Latin also sonchus, sonchos) from ancient Greek σόγχος sowthistle, of unknown origin.