Inula japonica Identity & Plant Part
The botanical entity is Inula japonica Thunb., a perennial of the Asteraceae from East Asia with yellow, daisy-like flower heads that open in late summer. The part used is the flower head. Leaves, stems and the root are not included. Whole flower heads carry silky hairs on the seed crowns, which is one reason a smooth, dissolved extract is easier to handle than the raw flower. The large root of elecampane, Inula helenium, is another species of the same genus and a different material. Sesquiterpene lactones, flavonoids and caffeoylquinic acids are the constituent families of Inula japonica flowers, named here without figures.












