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Definition of Wall fern
1. Noun. Mat-forming lithophytic or terrestrial fern with creeping rootstocks and large pinnatifid fronds found throughout North America and Europe and Africa and east Asia.
Exact synonyms: Adder's Fern, Common Polypody, Golden Maidenhair, Golden Polypody, Polypodium Vulgare, Sweet Fern
Generic synonyms: Polypody
Generic synonyms: Polypody