#box_elder__boxelder__ash-leaved_maple__Acer_negundo  common shade tree of eastern and central United States
  supertype:  #maple  any of numerous trees or shrubs of the genus Acer bearing winged seeds in pairs; north temperate zone
  subtype:  #California_box_elder__Acer_negundo_Californicum  maple of the United States Pacific coast; fruits are white when mature

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