Plants 30-65 cm tall. Rhizome erect, short, apex scaly; scales blackish brown, with pale reddish brown edges, triangular, 3-5 mm, margin fimbriate to subentire. Fronds caespitose; stipe green or stramineous when dry, 12-30 cm, adaxially sulcate with median supravascular ridge, base scaly, or subglabrous; lamina narrowly triangular to linear, 20-38(-50) × 7-10(-14) cm, apex caudate, 1-pinnate to rarely bipinnatifid; pinnae 15-25(-35) pairs, subopposite to alternate, shortly stalked, lower pinnae not reduced, narrowly triangular, 3-5 × 1-1.5 cm, simple, base asymmetrical, acroscopic side truncate, basiscopic side cuneate, margin crenate, apex acute or obtuse. Costa stramineous, raised on both sides, venation obvious, pinnate, basal acroscopic vein 2-4 times forked, other veins simple, not reaching margin. Fronds subleathery, grayish green when dry; rachis stramineous when dry, with hastate-stellate fibrillar scales or subglabrous, sulcate with median supravascular ridge on adaxial side, sometimes gemmiferous near apex. Sori median on veins, linear, ca. 3 mm; indusia whitish to gray-brown, linear, membranous, entire, opening toward costa.
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Lithophytic fern. Rhizomes erect, scaly. Stipe and rachis mostly green except at extreme base, bearing very scattered scales; stipe 5–12 cm long, 0.5–1 mm diam. Lamina narrowly ovate, pinnate, 11–17 cm long, 4–6 cm wide, pale green, ± glabrous; apices acuminate. Pinnae in 10–15 pairs, ± oblong; bases lobed acroscopically and partially excised basiscopically, shortly stalked; margins deeply and regularly crenate; apices obtuse; longest pinnae below middle, 20–30 mm long, 9–13 mm wide, reducing gradually upwards but abruptly contracted to an acuminate pinnatifid apical segment. Sori to 3 mm long. Perispores pale, reticulate, fenestrate, with occasional ridges; exospores 41 µm × 28.4 µm (mean).
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