Leaves monomorphic, green through winter, 30--100 × 10--25 cm. Petiole 1/4--1/3 length of leaf, scaly at base; scales in dense tuft, pale tawny. Blade bluish green, ovate-lanceolate, pinnate-pinnatifid to 2-pinnate at base, leathery, not glandular. Pinnae ± in plane of blade, lanceolate; basal pinnae lanceolate, slightly reduced, basal pinnules longer than adjacent pinnules, basal basiscopic pinnule longer than basal acroscopic pinnule; pinnule margins shallowly crenate to nearly entire. Sori near margin of segments. Indusia lacking glands. 2 n = 82.
Rhizome ascending to erect; lvs firm, evergreen; petiole 1–2 dm, with a tuft of slender, concolorous, pale reddish-brown scales at the base and smaller, scattered scales above; blade lance-oblong, (2–)3–4.5 × 1–2.5 dm, broadest just above the base, glabrous but with a few hair-like scales, pinnate-pinnatifid to bipinnate, with 15–20 pairs of pinnae, the larger pinnae with mostly 10–15(–18) pairs of segments, the larger segments mostly (0.7–)1–2(–2.5) cm, with 6–9 pairs of veins; sori submarginal, near the sinuses between the teeth; 2n=82. Woods and talus-slopes; Nf. to S.C. and Ga., w. to s. Ont., Minn., Kans., and Okla.
|Marginal wood fern, dryoptère à sores marginaux|