Rhizomes shortly creeping, densely scaly; scales dark brown, ca. 2 mm, narrow, 1 or 2 cells wide at base, acicular at apex, stiff. Stipe stramineous to dark stramineous, 20-30 cm, abaxially sulcate except at base; lamina ovate-oblong to lanceolate, 20-50 × 5-15 cm, firmly herbaceous to papery, 3-or 4-pinnate, widest at middle, base broadly cuneate, apex acuminate; pinnae 15-20 pairs, alternate, patent to slightly ascending, ovate-lanceolate, 3-pinnate at base, base cuneate and shortly stalked, margin denticulate to erose, apex acuminate; ultimate pinnules or segments cuneate, to 4 mm wide, apex broadly rounded to truncate or shallowly lobed; veins visible on abaxial surface, forked in ultimate lobes. Sori terminal on 1 or uniting 2 or 3 vein ends; indusia basally and partially adnate laterally, denticulate to erose, rarely repand, distinctly shorter than or rarely coterminous with adaxial lamina. Spores ellipsoid, monolete. 2n = 96, 192.
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