#genus_Groenlandia__Groenlandia  a monocotyledonous genus of the family Potamogetonaceae
  supertype:  monocot_genus__monocotgenu__liliopsid_genus  genus of flowering plants having a single cotyledon (embryonic leaf) in the seed
  member of:  family_Potamogetonaceae
  member:  frog's_lettuce  very similar to Potamogeton; of western Africa, Asia, and Europe

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