Complex sentence: Sagebrush is the common name for "Artemisia tridentata" and a number of other species of shrubby plants in the genus "Artemisia" (which is part of the aster family), native to the North American west and other parts of the world.
Split into simpler sentences: Sagebrush is the common name for "Artemisia tridentata" and a number of other species of shrubby plants in the genus "Artemisia". Sagebrushes are native to the North American west and other parts of the world.