. Nat. ord., Lobeliaceae.
A tall smooth plant, with oblong-lanceolate leaves, slightly toothed, and large, showy deep red flowers in an elongated raceme rather one-sided; it is indigenous to the United States.
A proving of this will be found in the Transactions of the American Institute, i., and in Hale's New Remedies.
Part employed. - The mature plant. Preparation. - Tincture.