"Toda-shiba" (Arundinella hirta) belongs to Poaceae (the Grass family). It is a perennial herb that is distributed not only in various parts of Japan, but also in the Korean Peninsula, China, and the Ussuri region. It grows in sunny mountains, the clums are hard and upright, and the height is 30-120 cm. The leaves are linear and wrap slightly inward. From August to October, sparse panicles are borne and the twigs are filled with green or purple spikelets. The Japanese name comes from the fact that it grew a lot in Todagahara, Saitama Prefecture. It is also known as "Baren-shiba" in Japan.