#genus_Asplenium__Asplenium  in some classification systems placed in family Polypodiaceae
  supertype:  fern_genus  genera of ferns and fern allies
  member of:  family_Aspleniaceae
  member:  spleenwort  any of various chiefly rock-inhabiting ferns of the genus Asplenium
  member:  bird's_nest_fern__Asplenium_nidus  tropical Old World or Australian epiphytic fern frequently forming tufts in tree crotches
  member:  Asplenium_scolopendrium__hart's-tongue__hart's-tongue_fern__Phyllitis_scolopendrium  Eurasian fern with simple lanceolate fronds
  member:  scale_fern__scalefern__scaly_fern__scalyfern__Asplenium_ceterach__Ceterach_officinarum  small European fern with chaffy leathery fronds

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