Inula helenium Identity & Plant Part
The botanical entity is Inula helenium L., elecampane or horse-heal, a large perennial of the Asteraceae with big, velvety leaves and yellow flower heads. The part used is the root with its rhizome. Stems, leaves and flowers are not part of this ingredient.
Pharmacopoeia confusion is the main identity risk. A United States monograph titled Indian elecampane actually describes Inula racemosa, a different species. Elecampane root is also rich in inulin, a storage carbohydrate, and carries sesquiterpene lactones such as alantolactone, which are the compounds sold as purified products. Both are named only as constituent families.
Elecampane root is lifted, cleaned, sliced and dried before extraction, and the dried root with its rhizome is the starting material.












