Source : WordNet®

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