The Murasaki (Lithospermum officinale ssp. erythrorhizon) belongs to Boraginaceae (the Borage family). It is a perennial herb that is native to Japan, the Korean Peninsula and eastern China. This herb grows rearly in sunny grasslands. It has covered with white rough hairs, and can reach about 50 cm in height. The small white flowers bloom with bracts from May to July. The root is called "Shikon", and it has been used as a raw material of dye from long ago. The Edomurasaki, in the meaning of purple dyed in Edo, it is a purple bluish.