wild lettuce(redirected from lactuca canadensis)
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Related to lactuca canadensis: Lactuca virosa
(Plants) any of several uncultivated lettuce plants, such as Lactuca serriola (or L. scariola) of Eurasia and L. canadensis (horseweed) of North America, which grow as weeds and have yellow or blue flowers, milky juice in the stem, and prickly leaves: family Asteraceae (composites)
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