a plant of the genus Pinguicula, esp P. vulgaris, that grows in wet places and has violet-blue spurred flowers and fleshy greasy glandular leaves on which insects are trapped and digested: family Lentibulariaceae
butterwort in American English
(ˈbʌtərˌwɜrt)
noun
any of a genus (Pinguicula) of the bladderwort family of small, stemless plants with flat, sticky leaves on which insects are trapped