Elecampane or Horse-heal, Inula helenium, roots, flowers, leaves and buds. Handcolored copperplate engraving of a botanical illustration by J. Schaly from G. T. Wilhelm's "Unterhaltungen aus der Naturgeschichte" (Encyclopedia of Natural History), Vienna, 1817. Gottlieb Tobias Wilhelm (1758-1811) was a Bavarian clergyman and naturalist in Augsburg, where the first edition was published.