#genus_Pellaea__Pellaea  genus of chiefly small rock-loving ferns; in some classification systems it is placed in the family Polypodiaceae or Adiantaceae
  supertype:  #fern_genus  genera of ferns and fern allies
  member of:  #family_Pteridaceae
  member:  #cliff_brake__cliffbrake__rock_brake  any of several small lithophytic ferns of tropical and warm temperate regions
  member:  #coffee_fern__Pellaea_andromedifolia  evergreen fern of California and Baja California
  member:  #button_fern__Pellaea_rotundifolia  fern of New Zealand and Australia having trailing fronds with dark green buttonlike leaflets

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