Caudex short, erect; stipe to 30 cm long, narrowly winged at least distally, red-brown, glabrescent; basal scales to 7 × 1 mm with thin margins; lamina to 30 cm long with 3 pairs of pinnae, all with narrowly decurrent bases which form an almost continuous wing on each side of the rachis, usually not quite reaching the next lower pinnae; middle pinnae to 17 × 4 cm, narrowly caudate-acuminate, entire, with narrowly cuneate base; basal pinnae sometimes with a narrow basiscopic lobe to 12 × 2 cm; main veins on pinnae 8-9 mm apart along the costa, upcurved, cross-veins prominent on the lower surface with 2 rows of areoles between them; upper surface of midribs bearing very short hairs, rest of frond glabrous; sori small, irregularly scattered, many of them coalescent, mostly not on free veinlets; indusia very small, thin, persistent but ± obscured by developing sporangia.
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