Stems compact, ascending, stout, 5--10 mm diam.; scales mostly weakly bicolored, linear-subulate, 0.1--0.3 mm wide, centers dark brown, thin, margins lighter, thin, denticulate to entire. Leaves monomorphic, clustered on stem, 7--30 cm; croziers nearly glabrous. Petiole dark brown, lustrous, rounded adaxially, without prominent articulation lines. Blade linear, 1-pinnate, 1.5--4 cm wide; rachis brown throughout, straight, rounded adaxially, glabrous. Pinnae perpendicular to slightly ascending, usually not decurrent on rachis, simple and unlobed; costae absent. Ultimate segments broadly ovate to elliptic, 7--20 mm, leathery, glabrous; margins plane, not recurved, not covering abaxial surface, borders whitish, entire; apex obtuse to rounded. Veins of ultimate segments obscure. Sporangia sessile or subsessile, containing 64 spores, intermixed with abundant farina-producing glands. 2 n = 58.
- Flora of North America @ eFloras.org