Color, violet. Rays, 20 to 30, narrow, drooping, the heads about 1 inch broad, with small disk. Leaves, smooth underneath, rough above, ovate to lance-shape, broad and toothed in the middle, narrowed near the base, then suddenly spreading into an eared base which clasps the stem, 3 to 6 inches long. Stem, hairy in lines, crooked, branched above, 1 to 2 feet high. August to October.
Wet soil, woods and borders of streams, New England to Virginia, Kentucky, and westward.