wild lettuce

noun

Definition of wild lettuce

1a : a weedy lettuce that is an escape from a cultivated strain

b : any of several native wild plants of the genus Lactuca: such as

(1) : prickly lettuce

(2) : a blue lettuce (L. pulchella)

(3) : a tall North American herb (L. canadensis) that resembles prickly lettuce but lacks spines

2 : false wintergreen