Family, Composite. Color, white. Flowers, all tubular, with no marginal rays, collected in flat clusters. Involucre of about 5 bracts in a single row, making a cylindrical cup. Leaves, the lower large and broad, 1 to 2 feet across, kidney-shaped, with petioles; upper fan-shaped, distinctly toothed, all thin, green on both sides. August.
A plant 4 to 9 feet tall, with a stout, grooved, or angled stem. Rich, moist woods from New Jersey southward.