Color, blue violet. Leaves, oblong, tapering, rough-margined, those below on winged petioles, those above sessile, with heart-shaped bases, strongly clasping the stem; those on the flowering branches narrowed to bracts. Heads of flowers, crowded in a close panicle. Stern, stout, smooth, 2 to 4 feet high. August to October.

Dry soil, Maine to Michigan and southward. One of our most beautifully colored asters, found in woods or along roadsides.