Wormwood (Artemisa absinthium[1]) is a very bitter herb, used in potion-making since ancient times.[2] An Infusion of Wormwood is used in the concoction of the Draught of Living Death, Elixir to Induce Euphoria, and the Shrinking Solution.[3] Harry Potter learned about this ingredient in his first Potion class, where Professor Snape "pointed it out for him".