| common polypody | (n) mat-forming lithophytic or terrestrial fern with creeping rootstocks and large pinnatifid fronds found throughout North America and Europe and Africa and east Asia, Syn. golden polypody, wall fern, adder's fern, sweet fern, golden maidenhair, Polypodium vulgare |
| rock polypody | (n) chiefly lithophytic or epiphytic fern of North America and east Asia, Syn. rock brake, Polypodium virgianum, American wall fern |