灰白牧豆是含羞草科牧豆属的乔木,又名苍白牧豆,原产于中南美州的热带、亚热带干热地区。叶子呈二回羽状复叶,常簇生于短枝上,羽片一至二对、稀为多对;花小,呈头状花序;荚果膨胀而不开裂,中果皮肥厚、海绵状:种子之间有隔膜。灰白牧豆根系发达,须根能深入地下三十米吸取土壤深县的水分,能在燥热的干热河谷顽强生长。立地条件较好的地方,播后三年即可开花结果。既可用种子有性繁殖,也可扦插作无性繁殖。种植密 Honeysuckle is a mimosa grasshopper genus Pinus, also known as pale walrus, native to Central and South American tropical, subtropical dry and hot areas. The leaves are two-pinnate compound leaves, usually clusters are born in the short branches, pinnules one to two pairs, thin is more pairs; flowers small, was a flower head; pod swelling without cracking, mesocarp hypertrophy, sponge-like: seed Between the diaphragm. Grouped in white ghost bean root system, the root can deep underground 30 meters to draw the soil of deep water in the dry, hot and dry valleys grow tenaciously. Site conditions better place, three years after sowing can bear fruit. Seeds can be used for sexual reproduction, but also cuttings for asexual reproduction. Planting dense