polypodium_virgianum
1. [ noun ] (botany) chiefly lithophytic or epiphytic fern of North America and east Asia
Synonyms: rock_brake American_wall_fern rock_polypody
Related terms: polypody
Similar spelling:   Polypodium_aureum
  Polypodium_vulgare
  Polypodium_glycyrrhiza
  Polypodium_scouleri