The aum plant was commonly used for its healing abilities on open wounds and could be found in the Hartland Woods and Ven Forest of Westland. It often grew nestled in the crook of the roots of trees, particularly Nannyberry trees. One of its most distinctive characteristics was its soft, fuzzy leaves. Its tender stem, when gently squeezed, emitted a sticky, clear liquid that when applied to a flesh wound would make it heal faster and numb the pain. Richard was taught about the plant by Zedd and used the liquid on Denna after she was injured by Darken Rahl.