adder's fern


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Noun1.adder's fern - mat-forming lithophytic or terrestrial fern with creeping rootstocks and large pinnatifid fronds found throughout North America and Europe and Africa and east Asiaadder's 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
common polypody, golden maidenhair, Polypodium vulgare, sweet fern, wall fern, golden polypody
polypody - any of numerous ferns of the genus Polypodium