Rhizome short, stout, ascending, paleate; stipites crowded, paleate near base; paleae brown, ovate, long-attenuate, up to 1 cm. long. Stipes stout, (10)-30-60 cm. long, smooth to slightly asperous; dark brown towards base, paler above. Rhachis stout, pale brown to stramineous, smooth to slightly asperous, with distant to approximate opp. to subopp. pinnae. Lamina 20-120 cm. × 15-90 cm., deltoid, dark green, membr. to subcoriac., minutely punctate below, acute to acuminate, 2-3-pinnate. Veins copiously anastomosing. Primary pinnae 15-25 × 4-10 cm., deltoid-ovate to oblong-ovate, distant to approximate, shortly stalked to sessile with decurrent base. Secondary pinnae up to 7 × 3 cm.: lower often stalked; mid decurrent, pinnatifid; upper confluent, crenateserrate. Segs up to 15 × 8 mm., oblong, bluntly toothed. Secondary fertile pinnae us. narrow ovate-oblong, ± arcuate, acute to attenuate; segs toothed at tips. Sori us. cop. along margins, but not reaching apices of segs.

n = 30

2n = 58

2n = 58