High Quality Content by WIKIPEDIA articles! Artemisia tridentata (also called sagebrush/common sagebrush, big sagebrush, blue/black sagebrush or mountain sagebrush) is a shrub or small tree from the family Asteraceae. Some botanists treat it in the segregate genus Seriphidium, as S. tridentatum (Nutt.) W. A. Weber, but this is not widely followed. The vernacular name "sagebrush" is also used for several related members of the genus Artemisia, such as California Sagebrush (Artemisia californica).