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紫穗槐,豆科紫穗槐属,原产北美,本世纪初,经日本引入我国东北。现在已发展到华北、华中、西北和长江流域地区,近几年在广西及云贵高原也有引种栽培,是防风固沙、保持水土的优良绿化材料。紫穗槐为落叶丛生灌木,高1—4米,枝条直伸,青灰色;芽常2个叠生;小叶11—15枚;花小,蓝紫,花药黄色;荚果短镰形,长7—9mm,密被隆起油腺点。花期5—6月,果9—10月成熟。紫穗槐喜欢干冷气候,在年均气温10—16℃,年降水量500—700mm的华北地区生长最好。耐寒性强,1月份平均温达-25.6℃的地区也能生长。耐干旱能力也很强,能在降水量200mm左右的地区生长。也具有一定的耐涝能力,浸水1个月也不至死亡,对土壤要求
Amorpha fruticosa, Amorpha fritillary, origin North America, at the beginning of this century, Japan’s introduction of northeast China. Now it has developed into the areas of North China, Central China, Northwest China and the Yangtze River Basin. In recent years, it has also been introduced and cultivated in Guangxi and Yunnan-Guizhou Plateau. It is an excellent afforestation material for windbreak and sand fixation and soil and water conservation. Amorpha fruticosa as deciduous shrubs, 1-4 meters high, branches straight stretch, gray; bud often 2 stacked; leaflets 11-15; flowers small, blue purple, anthers yellow; 9mm, densely elevated oil gland point. Flowering 5-6 months, fruit 9-10 months mature. Amorpha fruticosa like to dry and cool climate, the annual average temperature of 10-16 ℃, annual precipitation of 500-700mm in North China’s best growth. Cold hardiness, the average temperature in January -25.6 ℃ area can grow. Drought-resistant capacity is also very strong, can grow in areas about 200mm of precipitation. Also has a certain ability to withstand waterlogging, flooding 1 month is not dead, the soil requirements