Utricularia

from WordNet (r) 3.0 (2006)

Utricularia
    n 1: bladderworts: large genus of aquatic carnivorous plants;
         cosmopolitan in distribution [syn: {Utricularia}, {genus
         Utricularia}]

from The Collaborative International Dictionary of English v.0.48

Utricularia \U*tric`u*la"ri*a\, n. [NL.] (Bot.)
   A genus of aquatic flowering plants, in which the submersed
   leaves bear many little utricles, or ascidia. See {Ascidium},
   [1913 Webster]