Symphyotrichum subspicatum (formerly Aster subspicatus) is a species of flowering plant in the family Asteraceae native to western North America. Commonly known as Douglas' aster, it is a perennial, herbaceous plant that may reach 40 to 120 centimeters (1 to 4 feet) tall. Its flowers have violet ray florets and yellow then reddish disk florets.
References