Jasmine (Jasminum) is a genus of shrubs and vines in the Family Oleaceae, with about 200 species, native to tropical and warm temperate regions of the Old World. The majority of species grow as climbers on other plants or on structures. The leaves can be either evergreen or deciduous, and are opposite in most species; leaf shape is simple, trifoliate or pinnate with up to nine leaflets. Jasmine flowers are white in most species, but with some species being yellow flowered. Unlike most genera in the Oleaceae which have four corolla lobes ('petals'), jasmines often have five or six lobes. They are often strongly and sweetly scented. Flowering is in spring or summer in most species, but in a few species, notably J. nudiflorum, in winter on the bare branches of this deciduous species. The common name 'jasmine' is often given to unrelated plants with pale, sweetly-scented flowers and dark green leaves, such as Trachelospermum species (Confederate or star jasmine), Gardenia jasminoides (Cape jasmine), Cestrum nocturnum (Night blooming jasmine) and Gelsemium species (Carolina jasmine).