Trichomanes bipunctatum Poiret in Lamarck, Encycl. 8: 69. 1808; Crepidomanes bilabiatum (Nees & Blume) Copeland; C. dilatatum Ching & Chu H. Wang; C. liboense P. S. Wang; Didymoglossum bipunctatum E. Fournier; T. bilabiatum Nees & Blume.

Plants up to 10 cm tall. Rhizome creeping, wiry or filiform, 0.2-0.5 mm in diam., irregularly branching, densely covered with reddish brown or dark brown short hairs. Stipes remote, 0.5-4 cm apart, 1-3 cm × 0.6-0.8 mm, narrowly winged throughout or up to middle, wings ciliate. Rachis and costae winged throughout, glabrous or abaxial surface with club-shaped hairs. Lamina 2- or 3-pinnate, oblong or narrowly to broadly ovate, 1.5-7 × 1-3 cm; pinnae 4-6 pairs, closely spaced, alternate, subsessile, ovate to oblong, 1-1.5 × 0.5-1 cm; pinnules 3 or 4 pairs, closely spaced, alternate, sessile, obovate to broadly cuneate, base unequally cuneate, apex subtruncate; ultimate segments closely spaced, narrowly linear, 2-5 × 0.6-0.8 mm, margin entire or slightly crisped, apex obtuse or acute. Veins dichotomous, stout, slightly raised on each surface, glabrous; submarginal false veinlets continuous, other striae few, 1 or 2 rows of cells present between false veinlets and margin of lamina. Sori apical on short acroscopic segments, 1-4 per pinna; involucres narrowly elliptic, ca. 2 × 0.8-1 mm, winged, mouth bilabiate, lips triangular; receptacles projecting, dark brown, 2-3 mm. 2n = 72.

On wet rocks or tree trunks in dense forests; 100-900 m (in Taiwan). Guangdong, Guangxi, Guizhou, Hainan, Hunan, Sichuan, Taiwan, Yunnan [India, Japan, Malesia; Africa, Madagascar, Pacific islands (Melanesia, Micronesia, Polynesia)].