The Shimonita welsh onion (Allium fistulosum cv. Simonita) belongs to Liliaceae (the Lily family). It is a perennial herb that is a signature agricultural product of Gunma prefecture in Japan. It is a non-tillering welsh onion classified in the Kaga group, and has a thick and chunky shape. This herb can reach about 60 cm in height and defined by short length of sheth, 15-20 cm long. The quality of sheth and leaf is tender, sweet and delicious. Generally, it is classified into Dharma, Nishinomaki and Tonebuto. Currently, the main varieties are Chu-Dharma varieties, which are intermediate types between Dharma and Nishinomaki.