"Saiyo-shajin" (Adenophora triphylla var. triphylla) belongs to Campanulaceae (the Bellflower family). It is a perennial herb that is distributed from Chugoku district of Honshu, west to Kyushu in Japan, as well as the Korean Peninsula, China, and Taiwan. This herb grows from flatlands to mountains and can reach 40 to 100 cm in height. The leaves are ovate-elliptic and whorled, sometimes opposite or alternate. From August to November, inflorescences are borne on the upper part of the stem, and lilac bell-shaped flowers bloom in a ring shape. It is closely related to "Ladybells", but it is characterized by the fact that the tip of the corolla is pot-shaped and the style is long protruding from the corolla.