| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Cystopteridaceae | Gymnocarpium appalachianum | Appalachian Oak Fern | Moist, rocky forests, at medium to high elevations. | Endemic to the c. and s. Appalachians (known from ne. WV, nw. VA, sc. PA, and disjunct in nw. NC and OH). |  |
| Cystopteridaceae | Gymnocarpium dryopteris | Northern Oak Fern | Moist, rocky forests, southwards at medium to high elevations. | Circumboreal, occurring throughout northern and central Eurasia, Greenland, south in North America to MD (?), e. WV, s. PA, OH, MI, IL, IA, w. SD, CO, n. NM, c. AZ, and OR. |  |
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