A herb. It keeps growing from year to year. The roots are carrot-shaped and 8-10 cm long by 1-2 cm wide. The stems are 50-150 cm tall. The leaves on the stem do not have leaf stalks. They are oval or sword shaped and 5-13 cm long by 1-5 cm wide. There are teeth along the edge. The flowers are in narrow panicles with branches having up to 7 flowers. They are blue.