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Rhizome up to 2 cm. in diam., erect, with tufted fronds and very-dark-brown lanceolate acuminate entire rhizome-scales up to 8 mm. long with paler borders. Frond arching, herbaceous, with proliferating bulbils up to 1 cm. in diam. on the costae and costules. Stipe matt-brown, up to 75 cm. long, thinly pubescent with minute white hairs and with dark scales similar to those of the rhizome about the base. Lamina up to 90 x 60 cm., ovate-triangular-acute in outline, 3-pinnatifid with the basal pinnae much developed basiscopically; basal pinnae unequally triangular, up to 48 x 38 cm. The upper pinnae narrowly oblong-acuminate, deeply pinnatifid into narrowly oblong somewhat falcate crenate lobes sparsely pubescent on both surfaces with short white hairs, densely so along the costae and costules and veins of the ventral surface; veins anastomosing usually without included veinlets. Rhachis brown, or straw-coloured, pubescent with minute pale-brown hairs, with decurrent lamina-wings near the apex. Sori up to 2 mm. in diam., circular; indusium c. 1 mm. in diam., membranous, minutely ciliate, reniform.