Wall-fern

wall fern

noun
the polypody, especially Polypodium vulgare or P. virginianum.

Origin:
1515–25

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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wall fern

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 [syn: common polypody
WordNet® 3.0, © 2006 by Princeton University.
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