Stem creeping, terete, robust, 3-5 cm thick, internodes 1-2 cm long. LEAVES: Petiole sulcate above, 30-40 cm long, blade sub-equally long, with a 3-4 cm long basal sheath. Blade sub-coriaceous, beautifully hyaline-margined, broadly elliptic or elliptic or oblong-elliptic, rounded or obtuse towards the apex, apex itself cuspidulate, base in general cordate-emarginate, 30-40 cm long, 10-15 cm rarely up to 20 cm wide, midrib rather flat on the upper side, highly prominent-rounded below, veins very numerous, very dense, almost all sub-equal, patent, not always parallel, ascending, curving near the margin where they join together. INFLORESCENCE: Peduncle 15-20 cm long, more slender than the petiole. Spathe boat-shaped, oblong, apex acute, smaller than the peduncle, 14-18 cm long, 4-6 cm wide, apex shortly apiculate, internally white. Spadix: Female zone cylindroid, adnate to the spathe a little above halfway, shortly stipitate at the base, 5 cm long; male zone cylindric, up to 2 times longer than the female zone, 9 cm long. Pistils shortly ovoid, 8-11, locules many-ovulate, ovules affixed by long funicles to the base of the locules, barbelate at the base.