[wikipedia] North America native, Description: Symphyotrichum subspicatum (formerly Aster subspicatus) is a species of flowering plant in the family Asteraceae native to western North America. Commonly known as Douglas's aster, it is a perennial, herbaceous plant that may reach 40 to 120 centimeters tall. Its flowers have violet ray florets and yellow then reddish disk florets.[3] (link added by Mary Ann Machi)