Herbaceous, about 4 ft. high; stems sharply angular or slightly winged; branches spreading, slender, sharply angled, glabrous. Leaves obovate or obovate-elliptic, rounded to an acute point at the apex, subacute at the base, 4–6 lin. long, 2 1/2–3 lin. broad, membranous, glabrous on both surfaces; lateral nerves about 7 on each side, slightly impressed on both surfaces; veins lax and indistinct; petiole about 1/2 lin. long, glabrous; stipules conspicuous, subulate-lanceolate, acute, 1 1/2 lin. long, somewhat membranous and purplish, glabrous. Flowers monœcious. Male flowers 1–3 in each leaf-axil; pedicel slender, about 1 lin. long, glabrous. Sepals 6, joined at the base, 1-seriate, subequal, oblong, obtuse, 1 lin. long, 1/2 lin. broad, membranous, 1-nerved, glabrous. Disk-glands 6, large, flat, covered with several wart-like protuberances, 1/4 lin. in diam. Stamens 3; filaments united to the top; anthers dehiscing obliquely. Female flowers the same size as the male; pedicel much thickened towards the apex. Sepals in 2 series, 3 outer ovate-elliptic, 3 inner slightly narrower, otherwise as in the male. Disk annular, only very slightly crenulate, glabrous. Ovary subglobose, lobed, glabrous; styles thick, free to the base, bilobed for about one-third their length, lobes terete, recurved, glabrous. Seeds subtriquetrous, convex on the back, 3/4 lin. long, marked with close longitudinal lines, about 7 of them on the outer convex side.