The Amur silver-grass (Miscanthus sacchariflorus) belongs to Poaceae (the Grass family). It is a perennial herb that is native to throughout Japan, as well as the Korean Peninsula and China. This grass grows in the bogs of water's edges and can reach 1-2.5 m in height. The rhizomatous roots extend transversally and the grass grows often in large clumps. The leaves are long linear, 50-80 cm long, and clumping. The large spikes, 25-40 cm long, are borne from September to October. It was widely used as a roofing materials at one time. The 18th-19th and 27th-39th photos show the Kayaba (A place to cut the thatch used for roofing) of Oaza Kodamagawa in Oguni Town, Yamagata Prefecture. In Chinese, it is called "荻" (di). It is a C4 plant (Plants with C4-type photosynthesis).