oak fern

oak fern
a small woodland fern, Gymnocarpium dryopteris, of northern regions, having triangular, pinnate fronds that slant horizontally.
[1540-50; trans. of L dryopteris < Gk dryopterís, equiv. to dryo- (comb. form of drys oak) + ptéris fern]

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Universalium. 2010.

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  • oak fern — noun bright blue green fern widely distributed especially in damp acid woodlands of temperate northern hemisphere • Syn: ↑Gymnocarpium dryopteris, ↑Thelypteris dryopteris • Hypernyms: ↑fern • Member Holonyms: ↑Gymnocarpium, ↑genus …   Useful english dictionary

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  • fern — fernless, adj. fernlike, adj. /ferrn/, n. any seedless, nonflowering vascular plant of the class Filicinae, of tropical to temperate regions, characterized by true roots produced from a rhizome, triangular fronds that uncoil upward and have a… …   Universalium

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