#genus_Matteuccia__Matteuccia__Pteretis__genus_Pteretis  small genus sometimes included in genus Onoclea; in some classifications both genera are placed in Polypodiaceae
  supertype:  fern_genus  genera of ferns and fern allies
  member of:  family_Dryopteridaceae
  member:  ostrich_fern__ostrichfern__shuttlecock_fern__shuttlecockfern__fiddlehead__Matteuccia_struthiopteris__Pteretis_struthiopteris__Onoclea_struthiopteris  tall fern of northern temperate regions having graceful arched fronds and sporophylls resembling ostrich plumes

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