adder's fern adder's fern /ˈædərz fɜːrn/

noun

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