Rhizome 1/2– 3/4 in. thick. Leaves 2–3, at the apex of the rhizome, erect, glabrous; petiole 7–20 in. long, 1–2 lin. thick, terete, green; blade sagittate, forming nearly an equilateral triangle in outline, occasionally slightly constricted above the basal lobes; front lobe (from insertion of petiole) 2 1/2–10 in. long, 3–7 in. broad, acute or very shortly cuspidate; basal lobes 2 3/4–6 1/2 in. long, 1 1/2–4 in. broad, oblong-ovate or elliptic-oblong, somewhat abruptly acuminate; basal nerves denuded for 3–8 lin. in the parabolic sinus. Peduncle 9–18 in. long, terete, green. Spathe 2–2 1/2 in. long, 1–1 1/4 in. broad, oblong or ovate-oblong, obtuse, apiculate, decurrent for 4–6 lin. at the base, expanded, spreading, green. Spadix sessile, 1/4–1 3/4 in. long, about 1/4 in. thick, cylindric, obtuse; male part about twice as long as the female. Ovary subglobose; stigma sessile, large, discoid, 3/4–1 lin. diam. Berries about 1/2 in. long, 4 lin. thick, slightly obovoid, bright orange-yellow.