#genus_Nephrolepis__Nephrolepis  small genus of tropical ferns; sometimes placed in Polypodiaceae
  supertype:  fern_genus  genera of ferns and fern allies
  member of:  family_Oleandraceae
  member:  sword_fern__swordfern  any of several tropical ferns having more or less sword-shaped fronds including one from which the Boston fern developed

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