Shrub, or tree to 6 m high. Leaves opposite or rarely subopposite, simple; petiole 0.5–1.2 cm long; lamina obovate (in occasional leaves elliptic), 4.5–10.5 cm long, 2.5–6 cm wide; secondary veins 8–14 on each side of midrib, divergent at angle of 50–60°. Inflorescences 1–few-flowered, to 1.3 cm long; pedicels obsolete or to 1 mm long. Sepals c. 2 mm long, abaxially nearly glabrous. Petals distinct, 4.5–7 mm long, white, abaxially densely appressed-pubescent, adaxially glabrous, subpersistent in fruit. Staminal filaments distinct, woolly at margin; antisepalous ones glandular-muricate towards apex. Stigma capitate. Follicles 6.5–7 mm long.