Glabrous small tree or shrub, usually with milky latex. Leaves alternate, 1 -or pinnatinerved, leathery with interpetiolar gland, sessile to petiolate. Inflorescence cymose or racemose, axillary or terminal. Flowers large, showy, with bracteoles. Calyx with ± equal, spreading, acute, glandular lobes. Corolla funnel shaped-campanulate, twisted in bud; tube cylindrical with a bell-shaped throat. Stamens included, inserted at the top of the tube free from stigma. Disc annular or absent. Carpels free; ovules 2-4 in each carpel; styles, united above; stigma broad, angular, Fruit a drupe, broader than long.