Source : WordNet®

Polypodium vulgare
     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: {common
         polypody}, {adder's fern}, {wall fern}, {golden
         maidenhair}, {golden polypody}, {sweet fern}]