在云南省西双版纳的很多村寨周围,常可见到一丛丛和一片片开着茂盛黄花和树干粗大苍劲、形状奇特的树林,成为当地一个独特的景观。 这种树就是铁刀木(Cassia siamea),也叫黑心树、挨刀树。铁刀木原产于泰国,被引种到西双版纳已有数百年的历史。它很适应西双版纳的生态环境条件,还具有顽强的萌发力。茎干被砍后,剩下 Around the many villages in Xishuangbanna, Yunnan Province, we can often witness a cluster of clumps of grass and strangely shaped trees with lush yellow flowers and trunks that make it a unique local landscape. This tree is Cassia siamea, also called black heart tree, knife tree. Iron knife wood native to Thailand, was introduced to Xishuangbanna for centuries. It is adapted to Xishuangbanna’s ecological conditions, but also has a strong germination force. After the stem is cut, the rest