胡枝子为蝶形花科胡枝子属植物,原产于我国东北、华北、华中、西北等地,日本、朝鲜、蒙古及俄罗斯也有分布。主要生长于海拔150~1000m的山地阴坡、丘陵、缓坡底部、林下、林缘、山坡、山谷等。胡枝子为多年生落叶灌木,株高1~2m,分枝多,小枝有棱,幼枝有柔毛,老枝灰褐色,嫩枝黄褐色。三出羽状复叶,互生,顶生小叶较大,宽椭圆形或 Lespedeza is a butterfly flower Lespedeza, native to China’s northeast, north, central China, northwest and other places, Japan, North Korea, Mongolia and Russia are also distributed. Mainly grows at an altitude of 150 ~ 1000m mountain shady slopes, hills, gentle slope at the bottom of the forest, forest edge, hillsides, valleys and so on. Lespedeza perennial deciduous shrubs, plant height 1 ~ 2m, branches and more branches twig, young branches with pilose, old branch gray-brown, shoots brown. Three pinnately compound leaves, alternate, terminal leaflets larger, wide oval or