"Shinano-zasa" (Sasa kurilensis) belongs to the Poaceae (the Grass family). It is an evergeen shrubby bamboos that is native from Hokkaido to Tohoku district and the Japan Sea side of Honsho, northern Kyushu, as well as the Kuril Islands and Sakhalin. This bamboo grows in mountain forests of heavy-snow region, and it can reach 1.5-2 m in height. The nodes of clum are slightly swollen and few-branched. The leaves are 20-25 cm long, 4-5 cm wide, and covered thickly with soft hairs at the underside. The winter buds bear at the lower part of clum. The Japanese name is derived from it's holotype is produced at Mt. Ontake.