Dryopteris marginalis (Marginal Shield Fern, Marginal Woodfern ) The marginal wood fern favors damp shady areas and is found throughout eastern North America. It favors moderately acid to circumneutral soils. It favors cooler areas, but is fairly drought-resistant once established. In the warmer parts of its range, it is most likely to be found on north-facing non-calcareous rock faces.
The evergreen leaves reach a maximum length of 1 - 2 ft, with a single crown on each rootstock. The round sori are located on the margins of the leaf tissue, hence the common name.