Plants 10-30 cm tall. Rhizome brown, ca. 0.8 mm in diam., subglabrous, with sparse rootlets. Stipes remote, ca. 2 cm apart, brown or green-brown, 5-10 cm × ca. 1 mm, glabrous, winged nearly to base, wings flat to crisped. Rachis and costae broadly winged throughout, glabrous, slightly zigzag. Lamina bipinnate to tripinnatifid, lanceolate, ovate-lanceolate, or ovate, 10-15 × 4-6 cm, membranous, glabrous; pinnae 10-12 pairs, closely spaced, alternate, spreading, triangular-ovate to ovate, 1.5-4 × 1-2.5 cm, base unequally cuneate, apex obtuse; pinnules 3 or 4 pairs, closely spaced, alternate, sessile, spreading, oblong, 1-1.5 cm × 5-8 mm, base decurrent, apex obtuse; ultimate segments simple or forked, oblong to linear, 2-5 × 1-1.5 mm, with a single veinlet, margin entire, apex obtuse. Veins dichotomous, obviously raised on each surface, brown, glabrous. Sori apical on short acroscopic segments; involucres subcircular or ovate, bivalvate, entire or slightly serrate, lobes slightly constricted below base of involucre.
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