Definition of 'hart's-tongue fern'

Noun

1. tropical American terrestrial fern with leathery lanceolate fronds; sometimes placed in genus Polybotrya
      Synonyms: hart's-tongue Olfersia cervina Polybotrya cervina Polybotria cervina
2. Eurasian fern with simple lanceolate fronds
      Synonyms: hart's-tongue Asplenium scolopendrium Phyllitis scolopendrium
3. common epiphytic or sometimes terrestrial fern having pale yellow-green strap-shaped leaves; Florida to West Indies and Mexico and south to Uruguay
      Synonyms: Florida strap fern cow-tongue fern

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