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原产我国长江流域和东南沿海的海桐,作为优良的观赏花木受到人们的喜爱,现在全国各地多有种植。四季有景皆可赏海桐(Pihosporumtobira)是海桐科海桐属常绿小乔木或灌木,地栽高1～3米,盆植高0.5～1米,枝叶繁茂,姿态婆婆,下枝覆地,自然形成半球状(图1),老枝灰褐色,嫩枝绿色,分枝较多,下部叶片单叶互生,小枝上部叶片轮生,并常密集于枝顶,倒卵形,先端圆钝,基部契形,叶缘常略
Pittosporum native to China’s Yangtze River Basin and the southeast coast is favored by the people as an excellent ornamental flower and is now planted throughout the country. Pihosporumtobira is an evergreen small tree or shrub of the genus Hippophae, which is planted 1 to 3 meters high and 0.5 to 1 meter high in potted plants with luxuriant branches and leaves, , Naturally forming a hemispherical (Figure 1), the old branch grayish brown, green shoots, branches more, the lower leaves single leaves alternate, branchlets upper leaves whorled, and often dense branches, obovate, apex obtuse, base Conformal, leaf margin often