bladderwort(n = noun.plant) - any of numerous aquatic carnivorous plants of the genus Utricularia some of whose leaves are modified as small urn-shaped bladders that trap minute aquatic animals;
is a kind of carnivorous plant
is a member of genus utricularia, utricularia

   A genus (Utricularia) of aquatic or marshy plants, which usually bear numerous vesicles in the divisions of the leaves. These serve as traps for minute animals. See Ascidium. [1913 Webster]

bladderwort, n. any insect-consuming aquatic plant of the genus Utricularia, with leaves having small bladders for trapping insects.

bladderwort family