Bistorta manshuriensis (Hangul: 범꼬리), Asian bistort, is an unresolved name for a proposed flowering plant species in the buckwheat family Polygonaceae. It is a perennial herbaceous plant found in mountain valleys and lowlands in Korea and Japan. It grows well in sunny or slightly shaded places. It grows up to 30 centimetres (12 in) - 80 centimetres (31 in).