a small woodland fern, Gymnocarpium dryopteris, of northern regions, having triangular, pinnate fronds that slant horizontally.
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How to use oak fern in a sentence
So far as I remember, my first encounter with the oak fern was in a cedar swamp, famous for its growth of showy lady's-slippers.How to Know the Ferns | Frances Theodora Parsons
As is often the case, having once discovered the haunt of the oak fern, it ceased to be a rarity.How to Know the Ferns | Frances Theodora Parsons
Also the pinnæ are not arranged so definitely in the form of three branches, as is to be observed in the case of the oak fern.
The oak fern grows in a damp and shady spot in the garden, though it is often more happy in a pot.
The oak fern is common in many parts of Scotland, and is to be seen carpeting the ground of many a moist wood.
British Dictionary definitions for oak fern
a graceful light green polypody fern, Thelypteris dryopteris, having a creeping rhizome, found in acid woodlands and on rocks in the northern hemisphere
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012