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The oak ferns
Gymnocarpium dryopteris Moore5.png
Scientific classification
Kingdom: Plantae
Division: Pteridophyta
Class: Pteridopsida
Order: Polypodiales
(unranked): Eupolypods II
Family: Cystopteridaceae
Genus: Gymnocarpium
Newm. 1851
Species: See text

Gymnocarpium is a small genus of ferns once placed with various other groups, including the dryopteroid ferns and the athyrioid ferns. Cladistic analysis has demonstrated that Gymnocarpium and Cystopteris form a natural but relatively primitive clade that is basal to the asplenoid, 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.

Gymnocarpium Species[edit]

External links[edit]