Rhizomes erect. Stipe dark brown to stramineous, 8-25 cm; stipe scales (blackish) brown, lanceolate, 3-6 × ca. 0.5 mm. Lamina 2-pinnatifid to 2-pinnate, (linear) lanceolate, 20-60 × 8-15 cm; free lateral pinnae 20-32 pairs, ± spaced, or sometimes continuous; basal pinnae distinctly shortened, 3-5 × 1.2-1.8 cm, slightly reflexed; middle pinnae 3.5-10 × 0.9-2 cm; pinnules entire to distinctly crenate, obtuse, entire, or sometimes only slightly crenate at apex, hyaline margins lacking. Rachises and costae abaxially covered with many scales, scales of costae distinctly bullate distally, costules without scales. Veins of ultimate pinnules pinnate and veinlets once forked, with pale yellow to castaneous glands on abaxial surfaces. Sori separate, distributed throughout, not confined to distal part of pinnules, medial to submarginal. Indusia distinct and persistent, entire or nearly so. Perispore echinate. 2n = 82*.
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