n. 捕虫堇属植物

[ noun ]
any of numerous carnivorous bog plants of the genus Pinguicula having showy purple or yellow or white flowers and a rosette of basal leaves coated with a sticky secretion to trap small insects
<noun.plant>

Butterwort \But"ter*wort`\, n. (Bot.)
A genus of low herbs ({Pinguicula}) having simple leaves
which secrete from their glandular upper surface a viscid
fluid, to which insects adhere, after which the margin
infolds and the insects are digested by the plant. The
species are found mostly in the North Temperate zone.