A tall tree, quite glabrous. Leaves oblong, apiculate, subacute at the base, 10–11 in. long, 3–4 in. broad, subcoriaceous, dark green above when dry; secondary nerves 15–18 on each side, much spreading, almost straight; petiole up to 1 in. long. Inflorescences corymbose, rather loose; peduncle stout, 1–4 in. long; bracts small, ovate, the lower deciduous; pedicels rather slender, up to 7 lin. long. Calyx 3 1/2–4 lin. long; sepals very broad-elliptic, obtuse, with small basal glands within. Corolla white; tube 1 in. long, subcylindric, widened at 1/3 from the base, villous within in the upper third, otherwise quite glabrous; lobes broad-oblong, 9–10 lin. long, margins wavy. Stamens inserted at the middle of the corolla-tube; anthers sagittate, subulate-acuminate, 5 lin. long. Carpels ovate-lanceolate; style filiform, 5 lin. long; stigma cylindric, grooved, with a basal ring.