Dried flowering plant of Centaurium erythracea Rafn. (syn. C. umbellatum Gilib., Erythraea centaurium Pers.), Gentianaceae. Habit. Europe, North America, Middle East, North Africa. Constit. Gentiopicrin, amarogentin, gentisin: Korte, Ber. 87, 1357 (1954); 88, 704 (1955). Review: A. Y. Leung, Encyclopedia of Common Natural Ingredients (John Wiley & Sons, New York, 1980) pp 109-110.
Dried flowering plant of C. cachanlahuen (Mol) Robins (syn Gentiana peruviana Lam.). Habit. Chile, Peru.
Bitter tonic.