Rhizome without the scales 2-5 mm diam., not white waxy. Scales nearly black, with pale border quickly diminishing or disappearing towards the apex, distinctly acicular, appressed to rhizome, not crisped, bearing multiseptate hairs at least when young, peltate, 5 mm long. Stipes dark brown, adaxially grooved, 2-8 cm long, glabrous or with few scales. Lamina imparipinnate, leaflets entire or nearly so, occasionally lobed at the base or once branched, or simple, entire to pinnatilobed, glabrous. Leaflets entire or nearly so, sometimes with some basal lobes. Sterile terminal leaflet or simple leaf 9-35 by 1-4 cm. Lateral leaflets 6-9 by 0.6-2.5 cm. Margin recurved or revolute, distinctly crenulate to dentate at least towards the apex. Pinnae narrowly ovate. Leaflets of fertile leaves entire or nearly so, sometimes with some basal lobes, or pinnatifid. Fertile terminal leaflet or simple leaf 8-28 by 1-4.5 cm. Lateral leaflets 4-8 by 0.7-2 cm. Margins distinctly crenulate to dentate at least towards the apex or not. Pinnae narrowly ovate or linear. Veins in sterile leaflets parallel, once or twice branched from the base, reaching the margin. False veins not present. Sori separate at the forking point of veins. Indusium also attached along the sides, pouch-shaped, oblong, longer than wide, 2 by 0.5-0.75 mm, upper margin not elongated, truncate or slightly rounded, extending to lamina margin or not, or protruding beyond lamina margin.
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