Plants 30-60 cm tall. Rhizome erect and short, apex scaly; scales dark brown, narrowly triangular, entire. Fronds caespitose, subsessile or with extremely short stipe; stipe stramineous, soft; lamina spatulate to very narrowly obovate, 25-60 × 4.5-6.5(-8) cm, gradually reduced into a 1-2 cm wide lateral wing; margin entire, often cartilaginous, apex cuspidate to caudate. Midrib flat to carinate at base abaxially, stramineous, subglabrous but with dark brown lanceolate scales at its base; veins visible on both sides, simple or forked, parallel. Fronds subleathery, brownish green to dark green after drying, subglabrous. Sori restricted to upper part of lamina, linear, 1.5-2.5 cm, borne on acroscopic veinlets and occupying 2/3-3/4 of their length; indusia brownish, linear, membranous, entire, persistent. Spores with lophate (cristate) perispore. Plants sexual tetraploid: 2n = 144.
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