See text Gymnocarpium is a small genus of ferns, called oak ferns.
Cladistic analysis has demonstrated that Gymnocarpium and Cystopteris form a natural but relatively primitive clade that is basal to the asplenioid, thelypterioid, and athyrioid ferns comprehensively.
Gymnocarpium sori are small, round and naked.
These ferns generally have a slender, creeping rhizome under the surface of the ground, and fairly thin-textured fronds.
This Polypodiales-related article is a stub.