1. Tropical American fern having fronds with white undersides
   "Silver ferns lined the humid rainforest path";
   - Pityrogramma calomelanos
    
2. Fern of southern tropical Africa having fronds with white undersides
   "The silver fern glistened in the forest understory";
   - Pityrogramma argentea

Derived forms: silver ferns

Type of: fern

Part of: genus Pityrogramma, Pityrogramma

Encyclopedia: Silver fern