Plants up to 12 cm tall. Rhizome erect, short; scales dark brown in center to pale brown at margin, ovate-triangular, margin sparsely toothed. Fronds caespitose; stipe brown, short, 2-4 cm; lamina narrowly elliptic, 5-8 × 1-1.6 cm, reduced to base, pinnatipartite, apex obtuse; segments 6-8 pairs, alternate, triangular, bases adnate to rachis, entire or slightly sinuate, apex obtuse. Veins obscure, nothocatadromous (anadromous base pattern but several middle pinnae with their basal vein pair catadromous), anastomosing and forming subhexagonal submarginal areoles. Fronds subleathery, dark green to brownish green after drying, adaxially subglabrous, abaxially densely covered with brownish, ovate-lanceolate to ovate scales, average stomatal guard cell length 40-48 µm. Sori linear, usually on acroscopic secondary veinlets and in middle between costa and margin; indusia rudimentary. Spores with lophate (costate) perispore, average exospore length 37-42 µm. Plants sexual tetraploid: 2n = 144.
Limestone rocks and mortared walls. Dry rock crevices at elevations from 1,400-2,600 metres in western China.
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