Plants 2-3 m tall. Fronds 2-pinnate; pinna rachises stramineous, 2-4 mm wide; pinnae 2-pinnatifid, 60-140 × 20-30 cm; pinnules many, alternate, deeply pectinately pinnatifid, lanceolate or narrowly lanceolate, 10-25 × 2-4 cm, base attenuate and with a 3-4 mm stipe, apex acuminate; lobes 20-40 pairs, linear-lanceolate to broadly lanceolate, 12-22 × 3-4 mm, apex emarginate; lamina thickly papery, glabrous adaxially, costae, costules, and veins abaxially with sparse brown stellate hairs; costae flat adaxially; veins prominent or slightly prominent on both surfaces. Sori brown, with 4 or 5 sporangia.
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