Plants of the genus are evergreen trees, shrubs, or vines. They contain a white latex. The leaves are opposite or arranged in whorls of up to 5. The blades are generally oval and smooth-edged, and some are leathery or lightly hairy. The inflorescence is a compound cyme. The flower has five lobed sepals and a bell- or funnel-shaped corolla of five ... Found on http://en.wikipedia.org/wiki/Allamanda
any of several tropical American shrubs or woody vines belonging to the genus Allamanda, of the dogbane family, having showy yellow or purple flowers, and often used for ornamental plantings. Found on https://www.infoplease.com/dictionary/allamanda