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DescriptionRhizome creeping, 2-8 mm in diameter; rhizome scales brown, awl-shaped. Fronds closely spaced, herbaceous, glabrous, erect or arching. Stipe up to 25 cm long, thin, wiry, dark brown to black, shining, glabrous. Lamina 2-3 pinnate, pinnate near the apex, triangular to ovate-deltate in outline, 20 × 18 cm. Rhachis and stalks black, shiny, glabrous. Pinnules persistent, 1-2.7 × 0.5-2 cm, wedge-shaped with straight sides, entire to deeply incised on the outer margin into narrow lobes. Lobes with outer margin minutely toothed, veins ending in the marginal serrations. Sori 2-5 beneath pinnule lobes on the undersurface of deflexed, membranous, oblong or slightly curved pale brown, glabrous indusial flaps.