A perfectly glabrous shrub, up to 15 ft. high, with stout branches. Leaves elliptic to obovate-oblong, very obtuse, apiculate, subacute or rounded at the base, 8–12 in. long, 4 1/2–8 in. broad, subcoriaceous, pale and punctate beneath; secondary nerves 11–12 on each side, usually straight up to 3/4 of their length; veins inconspicuous; petiole stout, 3/4–1 1/4 in. long. Inflorescences subcorymbose, many-flowered, from the branch-forks; peduncle stout, 3–4 1/2 in. long; bracts small, ovate, deciduous; pedicels up to 6 lin. long. Calyx 2 1/2–3 lin. long; sepals elliptic, obtuse, ciliolate, with numerous basal glands within. Corolla white, fragrant; tube rather slender, cylindric, 2–2 1/4 in. long, widened (to 3 lin.) and twisted near the base, tomentose within above and below the anthers; lobes oblong, obtuse, 1–1 1/4 in. long, margins wavy. Stamens inserted 4 lin. above the base; anthers almost 5 lin. long, sagittate, subulate-acuminate. Style 3–3 1/2 lin. long.