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sow thistle

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noun \ˈsau̇-\

Definition of sow thistle

: any of a genus (Sonchus) of spiny weedy Eurasian and African composite herbs including some (such as S. arvensis and S. oleraceus) widely naturalized in North America

First Known Use of sow thistle

13th century

Learn More about sow thistle

Britannica.com: Encyclopedia article about sow thistle

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