Rhizome without the scales 1.5-2 mm diam., not white waxy. Scales nearly black, without pale border, distinctly acicular, often curling backward, not bearing multiseptate hairs, lacking marginal setae or teeth or those rare, peltate, 3-5 mm long. Stipes dark brown, not grooved, 2.5-5 cm long (winged towards the apex), glabrous or with few scales. Lamina simple, entire, glabrous, 6-17 by 1 cm, leaf not or slightly dimorphous. Fertile leaf 7-20 mm broad. Veins in sterile leaves parallel, once or twice branched from the base. Sori and indusia connate, elongate along leaf margins.
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