any of several sagelike, bushy composite plants of the genus Artemisia, especially A. tridentata, having silvery, wedge-shaped leaves, with three teeth at the tip, common on the dry plains of the western U.S.
any of several aromatic plants of the genus Artemisia, esp A. tridentata, a shrub of W North America, having silver-green leaves and large clusters of small white flowers: family Asteraceae (composites)