Native To State: YES
Naturally Occurring: NO
Description
Gymnocarpium dryopteris (Oak Fern) is a small and delicate fern species belonging to the Dryopteridaceae family. Here are some key identification characteristics:
Appearance: Oak fern has a low and spreading growth habit. The fronds arise from a central rhizome, forming a tufted cluster of foliage.
Fronds: The fronds of Gymnocarpium dryopteris are finely divided and pinnate, meaning they have leaflets (pinnae) arranged along a central rachis (stalk). Each leaflet is lance-shaped or oblong with a pointed tip and slightly toothed edges.
Frond Texture: The fronds have a delicate and lacy texture, adding to their ornamental appeal.
Frond Color: The fronds are typically bright green in color, creating an attractive contrast against the surrounding vegetation.
Sori: On the undersides of the fronds, you can find small clusters of spore-producing structures called sori. The sori are protected by small, round, indusia, which are located near the margins of the leaflets.
Habitat: Oak fern is native to various regions of North America and can be found in a variety of habitats, including moist woodlands, shaded slopes, and rocky areas. It prefers cool and humid environments.
Distribution: The species is found in regions ranging from eastern Canada to the eastern and central parts of the United States.
Conservation: Oak fern is not considered a threatened species, and it can form dense colonies under favorable conditions.
Other Species: Gymnocarpium dryopteris is part of the Gymnocarpium genus, which includes other fern species with similar characteristics.
Oak fern is valued for its delicate and lacy fronds, making it a charming addition to shaded gardens and naturalistic landscapes. Its ability to form dense colonies in suitable habitats adds to its appeal as a groundcover fern in woodland settings.
Occurrence
Multiple specimens found along fern walk