Rhizome up to 2.5 cm. in diam., creeping, with tufted fronds and with ferrugineous narrowly lanceolate acuminate subentire rhizome-scales up to 2 x 0.2 cm. Fronds arching, herbaceous. Stipe pale-brown, up to 73 cm. long, set mainly towards the base with narrowly ovate-acuminate castaneous scales up to 8 mm. long with paler borders and mixed with paler narrower scales. Lamina up to 66 x 52 cm., ovate in outline, acute with the lowest pair of pinnae somewhat reduced and deflexed, shallowly to deeply 3-pinnatifid, 2-pinnate in small specimens. Pinnae very narrowly oblong and conspicuously attenuate up to 28 x 5.2 cm. Pinnules petiolate narrowly ovate-triangular in outline, broadly acute, base unequally cuneate, obtuse, deeply pinnatifid into crenate-serrate lobes without aristae, with the acroscopic basal lobe the largest, glabrous on both surfaces except for scattered minute pale-brown scales along the costules dorsally. Rhachis stramineous with scattered dark-brown subulate hair-pointed scales together with smaller paler scales. Sori c. 1 mm. in diam., circular; indusiam c. 0.5 mm., evanescent.