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A picture of a Oak fern

Oak fern

Gymnocarpium spp.

Gymnocarpium dryopteris Kemi, Finland 02.06.2013 by Matti Virtala (CC0)

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A photo of Oak fern
A photo of Oak fern

Oak fern Overview

Genus also called oak ferns, with 9 hardy, deciduous species. They are naturally found in moist woodland habitats across the Northern Hemisphere. Grown for their highly divided, delicate foliage with characteristic triangular-shaped fronds. Species in this genus possess slim underground rhizomes and round, naked sporangia clusters on the underside of the foliage.