Square bamboo trees originally came from the Mt. Emei area of Sichuan Province in mainland China. From there they moved east to Japan, and then were transplanted to Taiwan. Today you can only see them in Fenqihu or in Xitou Forest in Nantou.
四方竹原產四川峨嵋山，東傳至日本，再移植來台，台灣目前只有南投溪頭和奮起湖看得到。