Lachnanthes. Lachnanthes tinctoria. Red Root. N. O. Haemodoraceae. Tincture of whole plant.   Clinical.-Cough. Diphtheria. Headache. Heart, heat in; pains in. Phthisis. Pneumonia, typhoid. Sore throat. Stiff-neck. Wry-neck.   Characteristics.-Lachnan.