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DescriptionRhizome erect to procumbent, up to 3 mm in diameter; rhizome scales dark-brown, linear, up to 3 mm in length, margins pale, entire. Fronds tufted, sometimes weakly dimorphic. Stipe up to 23 cm long, dark brown to black, shiny, basally with scattered brown scales similar to those on the rhizome. Lamina broadly ovate to triangular in outline, up to 130 × 120 mm, 2 to 3-pinnatifid, basal pinnae basiscopically developed; pinnae glabrous, dark green above, slightly paler below, venation obscure, margins entire to weakly lobed. Rhachis and costae black, glabrous, rhachis winged. Sori marginal, interrupted or continuous; indusium membranous, discrete or continuous, not apparent at maturity.