Young stems slightly keeled, soon becoming terete, percurrent; internodes to 7 cm long; intercalary cataphylls absent; laterals with 1 or 2 (3) pairs of rather large basal cataphylls, to 2 cm or more above axil. Petiole ca. 1 cm long; blade (ob)ovate to elliptic, to 9(-12) x 6 cm, apex rounded, base abruptly tapered into petiole. Monoecious? (spikes of all 3 specimens identical). Inflorescence to 5 cm long, with 1-6 sterile internodes, fertile internodes 3-6, crowded; flowers (3)5(7) per fertile bract, 2-seriate. Fruit ovoid, 0.4 x 0.25 cm, smooth, perianth segments closed.