Noun genus pistia has 1 sense
  1. genus Pistia - 1 species: water lettuce
    --1 is a kind of
    monocot genus, liliopsid genus
    --1 is a member of Araceae, family Araceae, arum family
    --1 has members:
     pistia, water lettuce, water cabbage, Pistia stratiotes, Pistia stratoites
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