1. (noun)common polypody, adder's fern, wall fern, golden maidenhair, golden polypody, sweet fern, Polypodium vulgare mat-forming lithophytic or terrestrial fern with creeping rootstocks and large pinnatifid fronds found throughout North America and Europe and Africa and east Asia Synonyms: golden maidenhair, sweet fern, adder's fern, golden polypody, wall fern, rabbit's-foot fern, common polypody, serpent fern