在广西西南边陲的宁明、龙州、靖西和那坡、德保等地的石炭岩石山山岭上,生长着一种扎根于碎石岩缝、枝干粗大、绿叶婆娑而又形态婀娜多姿的高大速生优良树种——任豆树,满山遍岭郁郁葱葱。把一座座石山山岭染得翠绿。远远望去,一派南国北热带季雨林的大好自然风光。 On the rocky hillsides of the Carboniferous rocks in Ningming, Longzhou, Jingxi, Napo and Debao in the southwestern border of Guangxi Province, there is a kind of stone rooted in gravelly rock seams with thick branches, green leaves and graceful shapes. High-speed fast growing excellent tree species - Renwu, lush mountains and mountains. Mount a mountainous hill Zeyi green. From afar, a school of southern tropical monsoon forest of great natural scenery.