Rhizome rather stout, short, erect, ± clad in dark brown linear-subulate paleae, c. 5 mm. long; stipites tufted. Stipes slender, 10-20-(35) cm. long, sparingly paleate to nude at base, glabrate in upper part. Rhachis grooved, narrowly winged, ± densely clad in reddish hairs to glabrate. Lamina rather dark green, submembr., narrow ovate to ovate-deltoid, acuminate, glabrate, 2-(3)-pinnate; 15-30-(35) × 5-15-(25) cm. Larger (lowest) pinnae 4-12 × 2-8 cm., ovate to rather obliquely deltoid, acuminate. Secondary pinnae oblong to lanceolate, up to 3-(6) × 1-2 cm., pinnatifid to pinnatisect; segs ovate to triangular, acute to aristate. Sori 1-(3) per seg., 0·5-1 mm. diam., submarginal to about halfway between margins; indusium round-reniform.

n = 82