#polypody  any of numerous ferns of the genus Polypodium
  supertype:  fern  any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores
  member of:  genus_Polypodium
  subtype:  licorice_fern__Polypodium_glycyrrhiza  fern having rootstock of a sweetish flavor
  subtype:  gray_polypody__resurrection_fern__Polypodium_polypodioides  fern growing on rocks or tree trunks and having fronds grayish and scurfy below; Americas and South Africa
  subtype:  leatherleaf__leathery_polypody__coast_polypody__coastpolypody__Polypodium_scouleri  stiff leathery-leaved fern of western North America having ovate fronds parted to the midrib
  subtype:  rock_polypody__rock_brake__American_wall_fern__Polypodium_virgianum  chiefly lithophytic or epiphytic fern of North America and east Asia
  subtype:  common_polypody__adder's_fern__adder'sfern__wall_fern__golden_maidenhair__golden_polypody__sweet_fern__sweetfern__Polypodium_vulgare  mat-forming lithophytic or terrestrial fern with creeping rootstocks and large pinnatifid fronds found throughout North America and Europe and Africa and east Asia

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