Rhizome c. 1 cm thick, woody, long-creeping to high-climbing; scales ovate, 5-10 mm long, brown, with broadly rounded bases. Fronds moderately crowded, erect to arcuate. Stipe 6-20 cm long, scaly at the base. Lamina of simple juvenile fronds 15-30 cm long, 1.5-3 cm wide. Lamina of mature sterile fronds 12-50 cm long; lower pinnae longest. Sterile pinnae 12-25 cm long, 1.5-3.2 cm wide, coriaceous, dark green above, paler beneath; margins slightly irregular; apex acute to acuminate; lower pinnae stalked; upper ones nearly sessile. Lamina of fertile fronds smaller than sterile fronds; pinnae c. 2 mm wide.