Arnica montana Flower Source & Identity
The botanical entity is Arnica montana L., a perennial of the daisy family, Asteraceae, native to mountain meadows in Europe. The part used is the flower head, the yellow-orange capitulum. The root and rhizome, the leaves and the stem are not part of this arnica flower extract.
Several plants are sold under an arnica name. Heterotheca inuloides, called Mexican arnica, is a different genus traded as a substitute, and Arnica chamissonis is a closely related species of North American origin.
The characteristic constituent families of the flower head are sesquiterpene lactones, flavonoids and a small volatile oil fraction.












