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hart's-tongue fern
  1. n. tropical American terrestrial fern with leathery lanceolate fronds; sometimes placed in genus Polybotrya [syn: hart's-tongue, Olfersia cervina, Polybotrya cervina, Polybotria cervina]

  2. Eurasian fern with simple lanceolate fronds [syn: 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 [syn: Florida strap fern, cow-tongue fern]