Hymenophyllum polyanthos (Sw.) Sw.

Plants 5-15 cm tall. Rhizome brown or black, 0.2-0.3 mm in diam., with sparse brownish hairs, hairs caducous, with sparse rootlets. Stipes remote, 0.5-4 cm apart, columnar, 0.4-8 cm, slender, rarely decurrent to base, wingless or narrowly winged at apex, wings flat. Lamina 1-or 2-pinnate to quadripinnatifid, brown-green or brown when dry, triangular-ovate or obovate to linear, 1-13 × 0.3-5 cm, membranous, glabrous, base cuneate, cordate, or rounded, apex acuminate or obtuse; pinnae 4-15 pairs, alternate, spreading, oblong to ovate or narrowly ovate, base cuneate to cordate, apex obtuse to acuminate; ultimate segments linear or oblong, 1-4 × 0.8-1.5 mm, with 1(or 2) veinlets, margin entire, apex rounded or somewhat retuse. Veins dichotomous, obvious. Sori usually on upper parts of frond, terminal on ultimate segments; involucres bivalvate, entire or toothed at apex, obtuse or acute at apex. 2n = 56.

Grows on tree trunks and rocks in complex notophyll and mesophyll vine forest.