Aster, Schreber's
 

Aster schreberi
This 2-3' plant has a smooth, somewhat crooked stem and coarsely toothed leaves. The large lower leaves are heart-shaped, have a broad, angular notch at the base, and are on long, rather hairy stalks. The sessile upper leaves are lance-shaped or ovate. The 1" white flowers are in a flat or somewhat convex cluster at the top of the stem and have 15-20 rays. Green bracts are blunt-tipped and hairy. Blooms July, August in thickets, woods borders, fence rows.

Large-leaved aster (A. macrophyllus) is similar but usually has lavender rays.