Plants 15-20 cm tall. Rhizome long creeping, ca. 3 mm in diam., apex scaly; scales narrowly triangular to triangular. Fronds remote, up to 5 mm apart, brown grayish green when dry, herbaceous, subglabrous; stipe slightly shiny, dark purple-brown to black abaxially, 5-6 cm, sparsely scaly to subglabrous; lamina 1-pinnate, ovate-triangular, 9-12 × 5-6 cm, base truncate and slightly reduced, apex acute; rachis grayish green, base slightly shiny and purple, with scales or subglabrous; pinnae up to 10 pairs, distinctly stalked, stipicel broadly falcate-trapeziform, up to 0.3 cm, middle pinnae 2.5-3 × 0.8-1.3 cm, dimidiate, apex obtuse, base asymmetrical, acroscopic side semicordate to truncate and parallel to rachis, basiscopic side of basal pinnae excavate (cut away), in middle pinnae becoming narrowly cuneate and entire, acroscopic margin serrate, teeth not retuse; pinnae spreading to ascending, basal pinnae slightly reduced and deflexed. Veins distinct, forking and free, ending below marginal tooth, basiscopic side with 1(or 2) vein(s) lacking. Sori medial, linear, 2-6 mm; indusia persistent, pale brown, semi-elliptic to linear, membranous, entire, mainly opening toward costa.
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