Rhizome ascending, set with dark brown rhizome scales. Fronds gemmiferous. Proliferating bud borne on rhachis on or below terminal segment. Rhachis pubescent below. Lamina up to 650 x 130 mm. Pinnae shallowly pinnatifid; lobes usually 2- or 3-fid. Sori borne between costa and lobes.
Perennial with suberect rhizome. Fronds to 1.1 m, arching, proliferous on rachis near lamina apex, stipe with scales and short hairs, lamina herbaceous, narrowly elliptic, 1-pinnate to 2-pinnatifid, pinnae to 6.5 cm long, with up to 55 pinna pairs, inaequilaterally narrowly trullate to lanceolate, to 5.3 cm long, pinnatifid into linear lobes, upper surface densely hirsute along costa, sparsely hirsute along veins, lower surface with scales and few-celled hairs along the costa, veins and often also between veins, rachis with short hairs. Sori linear, indusium entire, to 4 mm long.
Rhizome ascending, up to 5 mm in diameter, set with appressed, dark brown, narrowly ovate-deltate, pseudoserrate rhizome-scales up to 2 mm long with paler borders. Fronds closely spaced, herbaceous, gemmiferous; stipe dark brown, densely scaly at first with appressed scales of different sizes, also with hairs; lamina very narrowly elliptic to ovate-lanceolate, up to 650 x 130 mm, pinnate to shallowly 2-pinnatifid, lower pinnae decrescent; pinnae in up to 55 pairs, base unequally cuneate, shallowly pinnatifid into linear-oblong, acute, usually 2- or 3-fid lobes or broadly cuneate and deeply incised lobes, set with minute, pale, hair-like scales below and along costa above; rhachis winged for most of its length, densely pubescent dorsally with pale hairs, and set with occasional ovate scales. Sori borne between costa and lobes, on outermost branch-vein supplying lobes, up to 8 mm long; indusium linear, membranous, entire, c. 0.4 mm broad.
A lithophyte on mossy boulders in deep shade in forest.
Mossy boulders in forests, mostly near streams, 100-600 m.