胡枝子又名二色胡枝子。原产于中国、日本和朝鲜。在我国约有30种,主要分布在我国的东北、华北、西北和内蒙古以及长江流域。 一植物学特征 二色胡枝子为豆科胡拉子属多年生小灌木。根系发达,主根入土深2～3米。茎直立,高2～3米,分枝多,通常丛生;三出复叶,小叶为倒卵形 Lespedeza also known as two-color Lespedeza. Originated in China, Japan and North Korea. There are about 30 species in our country, mainly distributed in the northeast, north, northwest and Inner Mongolia of our country and the Yangtze River valley. A botanical feature dichroic Lespedeza is a perennial shrub of Leguminosae. Roots developed, the main root deep into the soil 2 to 3 meters. Stems erect, 2 to 3 meters high, branched, often tufted; three compound leaves, leaflets obovate