#genus_Limnobium__Limnobium  American frogbit
  supertype:  monocot_genus__monocotgenu__liliopsid_genus  genus of flowering plants having a single cotyledon (embryonic leaf) in the seed
  member of:  family_Hydrocharitaceae
  member:  American_frogbit__Limnodium_spongia  American plant with roundish heart-shaped or kidney-shaped leaves; usually rooted in muddy bottoms of ponds and ditches

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