oak fern


noun

a small woodland fern, Gymnocarpium dryopteris, of northern regions, having triangular, pinnate fronds that slant horizontally.

Origin of oak fern

1540–50; translation of Latin dryopteris < Greek dryopterís, equivalent to dryo- (combining form of drŷs oak) + ptéris fern

British Dictionary definitions for oak fern

oak fern

noun

a graceful light green polypody fern, Thelypteris dryopteris, having a creeping rhizome, found in acid woodlands and on rocks in the northern hemisphere