Terrestrial herb. Stem creeping, prostrate and rooting; internodes glossy green, 2-4 x 4-5 cm, prophylls purplish, straight, up to 18-22.5 cm long. LEAVES erect; petioles 45-47.5 x 1.3-1.5 cm, slightly flattened adaxially, with short wine-coloured stripes; sheath 2-3 cm long; leaf blade pin-natipartite, ovate in outline, 40-60 x 32-45 cm, fresh leaves semi-glossy on both sides, drying light brown; anterior division 27-30 x 29-32 cm, primary lateral veins 6-8 per side, arising at an angle of 50-60° from the midrib, lobes oblanceolate, 18-30 x 1.2-2.5 cm, 8.5-12 times longer than wide, acuminate at apex, sinus ending 3-5 mm from the midrib; posterior divisions 9-11 x 27-28 cm, sinus parabolic, basiscopic lobes 1-2 per side, acroscopic 2-3; basal veins denuded for 1-1.2 cm. INFLORESCENCE erect at anthesis, one per leaf axil; peduncle 16-22 x 0.6-1 cm; concolourous with petiole; spathe 9-12 cm long, whitish green with medium green stripes outside, white inside, slightly constricted at middle, edged with pinkish margins; spadix 8.5-9.3 cm long; fertile male portion 5.5-6.8 x 0.8-1 cm, tapering to the apex; sterile male portion 0.5-0.6 x 1-1.1 cm;/e-male portion 3-3.2 x 0.6-1.1 cm, extending up to Vs of the spadix length. Staminate flowers prismatic, 4-androus, 1.5-2 x 0.6-1 mm; staminodes (sterile flowers) subprismatic, 2x1 mm. Pistillate flowers with gynoecium 1.3-1.5 mm long, stigma rounded, almost as wide as the ovary, c. 1 mm diam., style inconspicuous; ovary elliptic to obovate, 1-1.2 mm diam., 8-9-locular, 2-3-ovulate, ovules attached to the middle of the flower axis, funicle shorter than the ovules. INFRUCTESCENCE unknown.