[wildflower.org] Characteristics, Distribution: Plant Characteristics Duration: Perennial Habit: Herb Size Notes: Up to about 3 feet tall. Fruit: Nutlets. Bloom Information Bloom Color: White , Pink , Purple Bloom Time: Jun , Jul , Aug , Sep Distribution USA: AK , AR , AZ , CA , CO , CT , IA , ID , IL , IN , KS , KY , MA , ME , MI , MN , MO , MT , ND , NE , NH , NJ , NM , NV , NY , OH , OK , OR , PA , SC , SD , UT , VA , VT , WA , WI , WV , WY Canada: NB , NS , PE (link added by Mary Ann Machi)