1. Tropical American terrestrial fern with leathery lanceolate fronds; sometimes placed in genus Polybotrya
   - hart's-tongue, Olfersia cervina, Polybotrya cervina, Polybotria cervina 
2. Eurasian fern with simple lanceolate fronds
   - 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
   - Florida strap fern, cow-tongue fern

Derived forms: hart's-tongue ferns

Type of: fern, strap fern

Part of: Asplenium, genus Asplenium

Encyclopedia: Hart's-tongue fern

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