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大叶千斤拔(Moghania acrophylla)为豆科蝶形花亚科优良绿肥树种,又是紫胶虫寄生的优良植物。其地理分布很广,印度、马来亚、泰国、越南、柬埔寨和我国云南、贵州等省都有。 大叶千斤拔系多年生直立半灌木,高1～3米。叶互生,有小叶3片、革质,卵状披针形,叶柄长6～11厘米,中间小叶长20～25厘米,宽7～12厘米;总状花序腋生,紫红色,每年2月上旬萌芽,8月下旬至9月上旬开花;荚果椭圆形,10月上旬至11月下旬果实成熟;结实多,种子球形,成熟后呈光亮黑色,发芽能力较强,有利直播造林;根系分枝多,且粗壮发达,一年生根系入土深度可达1.5米左右,水平向延伸1.7米左右。
Moghania acrophylla (Moghania acrophylla) is an excellent green manure belonging to the subfamily of the legume butterfly, and is also an excellent plant parasitized by the lactea. Its geographical distribution is very wide, India, Malaya, Thailand, Vietnam, Cambodia and China Yunnan, Guizhou and other provinces have. Large leaves clinging perennial upright semi-shrubs, 1 to 3 meters high. Leaves alternate, with leaflets 3, leathery, ovate-lanceolate, petiole 6 to 11 cm long, middle leaflets 20 to 25 cm, 7 to 12 cm wide; raceme axillary, purple, early February of each year Sprout, from late August to early September flowering; pod oval, early October to late November mature fruit; sturdy, spherical seeds, maturity was bright black, strong germination, favorable afforestation; root branching and more , And robust developed, annual root penetration depth of up to 1.5 meters, the horizontal extension of about 1.7 meters.