Plants 5-15(-20) cm tall. Rhizome shortly elongated, not grooved ventrally, (0.5-)1.8-2.2 mm in diam., in cross section with 10-20 or sometimes more scattered sclerenchyma strands; phyllopodia 0.2-0.5 cm apart, lateral buds alternating with phyllopodia. Scales peltate, 1.6-5.8 × 0.7-1.1 mm, base entire to denticulate; acumen dull brown to blackish with a lighter margin, dentate. Fronds monomorphic, sessile, linear, 6-20 × 0.2-1 cm. Hydathodes distinct, sunken. Indument monomorphic, sparse; hairs 0.5-1.8 mm in diam., with erect-spreading, acicular rays of very unequal length. Sori superficial, without central bundle of paraphyses. Sporangia with stalks up to 1 × as long as capsule.
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