Spreading rhizomes not developed. Caudex up to 6 m. tall, densely invested with matted rootlets so that the diam. is up to 6 dm. or more in the lower part. Dead fronds long persistent, pendent. Stipes very short, densely clad near base with soft, light red-brown hairs: rhachides clad in soft pale brown hairs, glabrate in age. Lamina about lanceolate, 2-3-pinnate, up to 2 m. long, coriac. Primary pinnae 15-30 cm. long, oblong-lanceolate, acuminate; secondary up to 5 cm. long, rather close-set. Pinnules c. 5 mm. long, acute, widened and confluent at base. Fertile lobes rounded, strongly concavo-convex, each bearing a sorus; barren lobes, shallowly concavo-convex, subfalcate, acute, toothed or not. Indusium submembr., concavo-convex.