#genus_Sium__Sium  perennial of wet and marshy places in the northern hemisphere: water parsnips
  supertype:  #rosid_dicot_genus__rosiddicotgenu  a genus of dicotyledonous plants
  member of:  #family_Umbelliferae
  member:  #water_parsnip__waterparsnip__Sium_suave  stout white-flowered perennial found wild in shallow fresh water; northern United States and Asia
  member:  #greater_water_parsnip__greaterwaterparsnip__Sium_latifolium  large stout white-flowered perennial found wild in shallow fresh water; Europe
  member:  #skirret__Sium_sisarum  an Asiatic herb cultivated in Europe for its sweet edible tuberous root

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