《山海经·山经·中山经》
山上有一种树木，名称是帝休，叶子的形状与杨树叶相似，树枝相互交叉着伸向四方，开黄色花结黑色果实，服用了它就能使人心平气和不恼怒。
其上有木焉，其名曰帝休，叶状如杨，其枝五衢，黄华黑实，服者不怒。
There is a kind of tree on the mountain, named Di Xiu, with leaves similar to those of the poplar tree. The branches extend in all directions and intersect each other, the flowers are yellow and the fruits are black. Taking it can calm the mind and avoid anger.