Rhizome 3-4 mm. diam., far-creeping, branched, densely to sparingly clad in dark brown hairs; stipites distributed to approximate. Stipes up to 20-50 cm. × 2-4 mm., pale brown to stramineous, except towards dark base, muriculate, clad in us. rather sparse hairs. Rhachis (and costae) rather stout, pale brown to stramineous, with dense or scattered hairs. Lamina tripinnate, broadly deltoid, 20-90 × 15-60 cm., pale to rather dark green, membr. to subcoriac.; pinnae subopp. to alt. Primary pinnae often arcuate, spreading, ovate-oblong to ovate-lanceolate, acute to acuminate, 18-50 × 10-25 cm. Secondary pinnae narrow ovate-oblong, acute, 5-10 × 2-5 cm. Tertiary pinnae oblong, obtuse, pinnatifid to pinnatisect or sts pinnate, 1 cm. × 5 mm. Segs oblong-obtuse, to narrow-oblong, 1-2 mm. long, sts bluntly toothed. Sori us. cop., up to 5 pairs per seg., near sinuses, hardly 1 mm. diam.