Rhizome erect, to 1 m long, scaly; scales brown, dull, with paler margins. Fronds arcuate. Stipe 60-100 cm long, black at the base, deeply 3-grooved. Lamina 3-pinnate, broadly triangular, 80-120 cm long, 60-90 cm wide, membranous, brittle, dark green (glossy when wet). Pinnules oblong, 4-12 mm long, 2-6 mm wide; base narrowly attached to the axis; margins lobed one-third of way to costule; apex broadly obtuse. Sori 1-3 mm long, 4-8 per pinnule, mostly single; indusium pale to dark brown, not fragile.
Grows on the ranges and tablelands above 500 m altitude, in rainforest, often in moist situations near streams.
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