#genus_Lemna__Lemna  minute aquatic herbs floating on or below the water surface of still water consisting of a leaflike frond or plant body and single root
  supertype:  #monocot_genus__monocotgenu__liliopsid_genus  genus of flowering plants having a single cotyledon (embryonic leaf) in the seed
  member of:  #family_Lemnaceae
  member:  #common_duckweed__lesser_duckweed__Lemna_minor  of temperate regions except eastern Asia and Australia
  member:  #star-duckweed__Lemna_trisulca  cosmopolitan in temperate regions except North America

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