1. Eurasian fern with simple lanceolate fronds
   "Hart's-tongue ferns grew in the limestone crevices";
   - hart's-tongue, Asplenium scolopendrium, Phyllitis scolopendrium
    
2. Tropical American terrestrial fern with leathery lanceolate fronds; sometimes placed in genus Polybotrya
   "The tropical hart's-tongue fern flourished in the humid forest";
   - hart's-tongue, Olfersia cervina, Polybotrya cervina, Polybotria cervina
    
3. Common epiphytic or sometimes terrestrial fern having pale yellow-green strap-shaped leaves; Florida to West Indies and Mexico and south to Uruguay
   "Hart's-tongue ferns grew abundantly in the humid forest";
   - 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