Nat. ord., Compositae.
Synonym. - Lappa Major.
Characters. - A stout, branching, erect biennial, 3 to 5 feet high. Lower leaves heart-shaped, very large, sometimes attaining 1 1/2 foot in length by a foot in breadth; the upper ones much smaller and broadly ovate. Flower-heads in terminal panicles. Involucres nearly globular, catching at anything they come in contact with by the hooked points of their numerous bracts. Root long, cylindrical.
Reference to Horn. Proving. - Hale's New Remedies.
Part employed. - The root.
Preparation. - Tincture.