Rhizome 1-2 mm diam., reddish black to red-brown, in cross-section more or less quadrangular, sclerified peripherally only; scales with matted hairs, appressed, overlapping, narrowly ovate, 1.5-3 by 0.6-1 mm, reddish black at area of attachment, cell-walls in centre thickened, semi-clathrate, somewhat darker in the acumen, reddish brown, margin lacerate with cilia. Phyllopodia 1.5-6.5 cm apart, 0.8-6 cm long, 1 mm diam., reddish black to-brown to and including the rhachis; hairs dense, simple, very short, septation obscure. Stipes 2.5-8 cm long, 1 mm diam. Fronds pinnate to bipinnatifid, 10-24 by 4-9 cm, widest below the middle, gradually tapering to an acute to long-acuminate apex. Lateral pinnae 12-19 pairs, 8-14 mm apart, triangular-oblong, sometimes slightly falcate, 27-50 by 8-18 mm; base very broadly cuneate, sometimes inequilateral, tri-nerved, acroscopic margin parallel to nearly parallel to the rhachis, sometimes concave, sometimes extended into an auricle; basiscopic margin at c. 45° to the rhachis; midrib straight, margin serrate-crenate to lobed almost to the costa; apex rounded to acuminate; lower pinnae reduced, slightly reflexed (but curving forwards); upper pinnae gradually reduced, merging into apex. Second-order divisions, where present, nearly touching, triangular, 1-8 by 1.5-4 mm, with entire, sometimes dentate-serrate margin; apex acute to obtuse. Apical pinna continuous with rhachis and adjacent lateral pinnae, apex acuminate to caudate. Secondary veins forked several times. Indument on both surfaces of the pinnae consisting of simple, longish hairs on costa and margins and glandular, nearly sessile hairs on lesser veins. Hydathodes clear, sometimes obscured by a nearby hair, level with lamina. Sori medial or in more deeply divided fronds near the margins of the secondary divisions, 1-1.5 mm diam., indusia with glandular hairs.
Epiphytic, on trunks, rarely epilithic or terrestrial, in forest, often in riverine forest but also on ridges or in ravines. Altitude: sea level to c. 1100 m.
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