Trees, shrubs, undershrubs, sometimes twining shrubs. Leaves opposite, rarely alternate or whorled, simple, entire or toothed, pinnatisect or pinnatipartite or imparipinnate; exstipulate. Flowers actinomorphic, bisexual, rarely polygamous or dioecious, often dimorphous, hypogynous, fragrant to very fragrant in many species, in axillary or terminal cymes or panicles, rarely fascicled or racemose. Calyx usually small, campanulate, rarely turbinate or tubular, 4(-15)- toothed, rarely wanting. Petals 4-13, rarely absent, usually gamopetalous, tube long or short; lobes or petals imbricate or induplicate- valvate, rarely contorted. Stamens 2 or 4, inserted on the corolla tube or at the base of petals in poly- and apetalous genera, hypogynous; filaments usually short; anthers oblong, bithecous. Disk absent. Carpel 2, syncarpous; ovary superior, free, 2-locular; 2 ovules in each loculus, rarely 1 or 4-10; style short or long; stigma terminal, simple or 2-lobed. Fruit variable: berry, drupe, capsule or nut.
29 genera and about 700 species