Aster koraiensis (Korean:벌개미취), commonly called Korean starwort, is a herbaceous perennial plant of the family Asteraceae (Compositae). It can be found in temperate regions, mostly in Korea, in lawns, on roadsides, and other areas with moist soils. A. koraiensis is a Korean endemic plant and was first named in 1909. In Korea, its young leaves are used in food preparation, and the roots are used as a medical herb for antibacterial treatment and against diabetes, asthma, and some cancers.