Rhizome slender, creeping, densely scaly, roots many; scales brown, ovate-lanceolate, 1.4-3.8 × 0.2-1 mm, margin sparsely denticulate, apex acuminate. Fronds subdimorphic, distant; stipe stramineous, 5-35 cm; lamina oblong or ovate-lanceolate, 15-25 × 2-7 cm, herbaceous, glabrous, base abruptly narrowed into narrowly winged stipe, margin entire or slightly undulate, apex acuminate or obtuse; lateral veins oblique, veinlets forming 2 rows of areoles between 2 adjacent lateral veins, free included veinlets 1-or 2-forked. Sori linear, ranging from midvein to margin of lamina, 1 row between lateral veins.
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