Celeriac (Apium graveolens var. rapaceum) belongs to the Apiaceae (the Carrot family). It is a biennial herb that is native to the Mediterranean region. It is also cultivated in the Mediterranean region, northern Europe, North Africa, Siberia, Southwest Asia, and North America. This herb is a root vegetable with a bulbous hypocotyl. It was introduced into Japan in the early Meiji Era (about 140 years ago).