#genus_Ophioglossum__Ophioglossum  the type genus of the fern family Ophioglossaceae
  supertype:  fern_genus  genera of ferns and fern allies
  member:  adder's_tongue_fern
  member of:  family_Ophioglossaceae__Ophioglossaceae  a family of succulent ferns of order Ophioglossales; cosmopolitan in distribution
     member of:  order_Ophioglossales__Ophioglossales  coextensive with the family Ophioglossaceae
        member of:  class_Filicopsida__Filicopsida__Filicinae__class_Filicinae  ferns
           member of:  division_Pteridophyta__Pteridophyta  containing all the vascular plants that do not bear seeds: ferns, horsetails, club mosses, and whisk ferns; in some classifications considered a subdivision of Tracheophyta
              member of:  kingdom_Plantae__Plantae__plant_kingdom__plantkingdom  taxonomic kingdom comprising all living or extinct plants

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