红背桂别名紫背桂、青紫木,为大戟科土沉香属常绿灌木。原产马来西亚岛屿,我国广东、广西、海南及越南等地早有引种栽培。广泛应用于庭园和盆栽观赏。红背桂株高1~2m,分枝多,叶对生,偶互生或3叶轮生。叶长椭圆形或椭圆状披针形,叶表面浓绿色,有光泽,叶背鲜紫红色,穗状花序小,花初开时黄色,渐变为淡黄白色,蒴果三角 Red bayberry alias purple back Gui, Qingziju, euphorbiaceae Indrus is an evergreen shrub. The original Malaysian islands, China Guangdong, Guangxi, Hainan and Vietnam have long been introduced cultivation. Widely used in the garden and potted ornamental. Red Gui Gui high 1 ~ 2m, more branches, leaves opposite, even alternate or 3-leaf rotation. Leaves long oval or oval-shaped lanceolate, leaf surface dark green, shiny, reddish purple leaves, spikes small, yellow flowers at the beginning, gradually changed to yellowish white, capsule triangle