Rhizome short, erect, forming a slender trunk, 20–100 cm tall. Stipe 11–45 cm long, shiny, winged at base with 2 stipular extensions, pubescent; hairs pale ferruginous. Lamina 2-pinnate to 3-pinnate-pinnatifid, lanceolate to elliptic (juvenile ovate-deltoid), 30–100 cm long, 8–32 cm wide, membranous, semi-transparent, glabrous except primary and secondary rachises, dark green. Primary pinnae opposite to subopposite, lanceolate, jointed to rachis; midrib narrowly winged. Ultimate segments oblong-elliptic, serrate, obtuse or acute. Sporangia large, brown, restricted to lower half of ultimate segments in basal half of primary pinnae.
Grows in rocky places in mountain gullies, along creeks, around waterfalls and at cave openings to an altitude of 1300 m.
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