Plants up to 20 cm tall. Rhizome erect; scales blackish brown, narrowly triangular, entire. Fronds caespitose, dimorphic, sterile fronds smaller with stipe 1-3 cm and lamina 1-2 × 0.5-0.8 cm, elliptic, base broadly cuneate and slightly decurrent, apex obtuse; fertile fronds larger with stipe 1-5 cm, lamina lanceolate, 10-15 × 0.5-1 cm, base cuneate (cuneate-attenuate), decurrent, margin entire or slightly sinuate, apex acuminate, flagelliform (3-8 cm) and terminating in a gemma or rooting. Veins anastomosing, obscure, with 1-3 rows of areoles, usually a row of areoles close to midrib (rachis), other veinlets free. Fronds herbaceous, dark green after drying, subglabrous. Sori in 1-3 irregular rows on both sides of midrib (rachis), linear to elliptic; indusia gray-green to brownish, linear or elliptic. Spores with lophate (cristate-alate) perispore. Plants sexual diploid: 2n = 72.
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