Erect annual to c. 40 cm high, glabrous.
Leaves ovate to elliptic, to 5 cm long, acute to obtuse, mucronate or entire; petiolate.
Inflorescence clusters mostly axillary, larger clusters at the lower nodes. Bracts narrow, acuminate, 1–2 mm long. Perianth segments 5, 2–3 mm long, spathulate, apex obtuse with a short mucro. Stamens 3. Ovary wrinkled and swollen below, narrowed above; styles 3, ± free, swollen.