Rhizomes prostrate or ascending. Stipe stramineous, 18-50 cm; stipe scales brown, lanceolate or broadly lanceolate, ca. 15 × 2-4 mm. Lamina 3-pinnate to 4-pinnatifid, ovate, 40-70 × 30-50 cm; free lateral pinnae 15-20 pairs, continuous; basal pinnae not shortened, 18-30 × 7-11 cm, not reflexed; middle pinnae 18-25 × 5-6 cm; pinnules entire to deeply lobed, hyaline margins lacking, obtuse and entire at apex. Rachises and costae abaxially covered with many scales, scales on costae lanceolate; costules without scales. Veins of ultimate pinnules pinnate and veinlets simple or forked, with brown hairs on abaxial surfaces. Sori on basal half part of pinnules, or at least not on distal part, medial. Indusia distinct and persistent, eroded and with many minute glands. Perispore coarsely tuberculate. 2n = 82*.
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