Plants monoecious. Rhizome yellowish brown, branched or unbranched, surface with granular warts and yellow stellate lenticels; branches urceolate, 2-3 cm in diam. Scapes yellow to orange, 7-12 cm, base subtended by a distinct rhizome sheath. Leaves connate into a single sheathlike whorl, surrounding middle of scape. Inflorescences ovoid to subglobose, 1-3 cm in diam. Male flowers: clustered basally on inflorescence, ca. 3 mm in diam., pedicellate, subtended by rudimentary bracts. Perianth lobes 3, broadly deltoid, 1.5-2.5 mm , ± spreading. Synandria subdiscoid; anthers 3, transversely dehiscent. Spadicles obconic, shortly stiped, apically truncate; cuticular ridges of apical cells labyrinthlike. Female flowers: only on main axis of inflorescences. Fl. Jul-Aug.