Rhizomes long creeping; scales dark brown, lanceolate. Fronds monomorphic, closely or widely spaced. Stipe (15-)20-50 cm × 2-3 mm, straw-colored above a black base. Lamina ovate to ovate-deltoid or often broadly ovate, (12-)20-38 × 10-26 cm, apex acuminate, finely 4-pinnate-pinnatifid, thinly papery when dry, green to grayish green, not farinose. Lateral pinnae 10-14 pairs, basal pair largest, ovate-deltoid, apex acuminate, 10-25 × 5-14 cm, stalked to ca. 1 cm. Ultimate pinnules (segments) not overlapping, linear to narrowly oblanceolate, narrowly oblong, or narrowly elliptic, 2-5 × 0.5-1.5 mm wide, margins often cartilaginous, entire or with 1 or 2 sharp teeth, base cuneate, decurrent, apex acute to slightly acuminate. Sori 1-3 mm. False indusia linear to oblong, extending nearly to midvein, entire. 2n = 87, 116.
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