Tuber yellowish brown outside, globose, 1-2.5 cm in diam.; bulbiferous stolons spreading, creeping, slender, branched; bulbils many, covered by brown scales; bristles filiform, hooked. Leaves 3 or 4; petiole green, cylindric, 15-40 cm, proximal 1/4-1/3 sheathing; leaf blade dull green on both surfaces, areas between primary veins sometimes purple abaxially and/or adaxially, ovate to oblong-ovate, 8-23.5 × 7-14.5 cm, papery, base peltate and shallowly cordate, apex acute or slightly acuminate, sinus 5-45 mm; primary veins 4 or 5 on each side, radiating from petiole and pinnately from midrib of main lobe, secondary venation pinnate from primary veins, fine intramarginal vein present. Inflorescence solitary, flowering when leaves develop; peduncle green, 6-10 cm. Spathe tube green, narrowly ovoid, 12-15 × ca. 10 mm; limb semispreading to erect, yellow or yellow-green on both surfaces, elongate, 13-21 cm, membranous; proximal part of limb separated into 2 parts by a constriction; proximal part subglobose, 1.5-2.5 cm, opening to reveal male zone of spadix; distal part narrowly lanceolate, 11.5-21 cm × 6-15 mm, apex long acuminate, fully opening only for a short time (less than 3 or 4 hours). Spadix sessile; female zone 5.5-7.5 × 3.5-4.5 mm; ovary green; ovules many, oblong, basal; stigma sessile; sterile zone yellow, 4-5 mm, slender; sterile flowers rhombic or oblong, flat; male zone violet, clavate, ca. 10 × 4 mm; synandria 0.6-1 mm in diam.; filaments ca. 0.7 mm. Fl. May-Jul. 2n = 28.
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A herb which forms a tuber. These are yellowish brown and 1-3 cm across. It has creeping stolons. There are 3-4 leaves. The leaves are oval or heart shaped. They are 8-24 cm long by 7-15 cm wide. The leaf stalk join the leaf blade in from the edge. The leaf tapers to the tip. It is dark green. The bract around the flower is yellowish but purplish underneath.
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