#family_Dennstaedtiaceae__Dennstaedtiaceae  one of a number of families into which Polypodiaceae has been subdivided in some classification systems
  supertype:  fern_family  families of ferns and fern allies
  member of:  class_Filicopsida
  member:  genus_Dennstaedtia__Dennstaedtia  chiefly terrestrial ferns; in some classification systems placed in family Polypodiaceae
     member:  hay-scented_fern__hayscentedfern__hay-scented__hayscented__scented_fern__scentedfern__boulderfern__Dennstaedtia_punctilobula  fern of eastern North America with pale green fronds and an aroma like hay
  member:  genus_Pteridium__Pteridium  a genus of ferns belonging to the family Dennstaedtiaceae
     member:  pasture_brake__pasturebrake__bracken__brake__Pteridium_aquilinum  large coarse fern often several feet high; essentially weed ferns; cosmopolitan
     member:  bracken__Pteridium_esculentum  fern of southeastern Asia; not hardy in cold temperate regions

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