#genus_Trapa__Trapa  small genus of Eurasian aquatic perennial herbs: water chestnut
  supertype:  dicot_genus__dicotgenu__magnoliopsidgenu  genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination
  member of:  family_Trapaceae
  member:  water_chestnut_plant__water_chestnut__waterchestnut__caltrop  a plant of the genus Trapa bearing spiny four-pronged edible nutlike fruits

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