Chiefly lithophytic or epiphytic fern of North America and east Asia
English: rock polypody, rock brake, American wall fern, Polypodium virgianum
rock_brakeEnglish
rock brake, American wall fern, Polypodium virgianum, cliff-brake, cliff brake
Noun
Any of several small lithophytic ferns of tropical and warm temperate regions
English: cliff brake, cliff-brake, rock brake
Dwarf deciduous lithophytic ferns
English: rock brake