Aster, Large-leaved

Aster macrophyllus
A rather rough, coarse 1-5' plant with an angular reddish stem. The upper stem and flowering branches are sticky. The very large (4-8"), rough, broad-toothed, heart-shaped lower leaves have a prominent basal notch and are on long stalks. The sessile oval upper leaves are smaller. The 1" flowers have about 15 lavender (rarely white) rays. The yellow disc turns red with time. Bracts are downy and broad-tipped. Blooms July, August in open woods, clearings, road sides.
Schreber's aster (A. schreberi) is similar but the ray flowers are white.