Angelica acutiloba is a perennial herb from the family Apiaceae or Umbelliferous (carrot or parsley family). It is predominately in Japan and perhaps endemic (unique). It is now distributed widely and cultivated in Jilin, China, Korea, Taiwan and Indonesia. The common name of Angelica acutiloba is known as tōki (トウキ, 当帰) in Japanese. The root was used as a substitute for the crude drug tōki (当帰) in Kampō medicine (漢方製薬 Kanpō Seiyaku), which is a Japanese adaptation of Traditional Chinese medicine.