Inula helenium

Elecampane (Inula helenium), pronounced and also called horse-heal or elfdock, is a widespread plant species in the sunflower family Asteraceae. It is native to Eurasia from Spain to Xinjiang province in western China, and naturalized in parts of North America.

==Description== Elecampane is a rather rigid herb, the stem of which attains a height of about . The leaves are large and toothed, the lower ones stalked, the rest embracing the stem; blades egg-shaped, elliptical, or lance-shaped, as big as long and wide. Leaves are green on the upper side with light, scattered hairs, but whitish on the underside because of a thick layer of wool. The flower heads up to 5 cm (2 inches) broad, each head containing 50-100 yellow ray flowers and 100-250 yellow disc flowers. The root is thick, branching and mucilaginous, and has a bitter taste and a camphoraceous odour with sweet floral (similar to violet) undertones.