Rhizome shortly creeping, or ascending; scales yellow-brown, bright iridescent, soft, twisted, small ones ca. 5 × 1 mm, subulate-triangular, margin denticulate, large ones ca. 8 mm, 0.1-0.2 mm wide, linear-lanceolate, apex bristlelike, margin subentire. Fronds clustered; stipe dark, 1-6 cm, or nearly absent; lamina thickly leathery, linear or narrowly ribbonlike, 15-55 × ca. 0.5(-1) cm, narrowed gradually to both ends, base long attenuate; costa raised adaxially, adaxial surface with 2 parallel long grooves beside costa, also raised abaxially, broadened, flattened. Soral line close to margin, immersed in groove or ± superficial; paraphyses long, with head obconic, longer than wide. Spores monolete, oblong in outline, surface obscurely papillate.
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