Rhizome slender, c. 2 mm. diam., often far-creeping, branched, densely clad in dark red-brown hairs; stipites distributed along rhizome. Stipes up to 15 cm. long, 1-2 mm. diam., densely clad (as are rhachides) in dark red-brown viscid hairs, tuberculate. Lamina ovate-lanceolate, 10-50 × 3-25 cm., subcoriac., ± pubescent, bipinnate or occ. with some secondary pinnae again pinnate; lower rather shorter than mid-pinnae, upper gradually diminishing to terminal seg. Larger primary pinnae rather distant, 5-15 cm. × 15-40 mm., ovate-lanceolate, acuminate; secondary pinnae up to 5 cm. × 15 mm., narrow ovate-oblong, pinnatifid to pinnatisect. Segs up to 4 mm. long, deltoid-triangular to oblong, obtuse to subacute, sts ciliate; teeth several to none. Sori us. cop., in 2 irregular rows, often covering most of surface, us. 1 per seg., not or hardly protected by teeth.