Houttuynia. Yerba Mansa, Anemopsis californica.
Houttuynia. Houttuynia californica B. et H., now Anemopsis californica Hook. et Arn. Yerba Mansa.—The root of this piperaceous Californian plant is employed by the natives in chronic malaria, and also in diarrhea and dysentery, and has been used with asserted good results in gonorrhea and rheumatism. For elaborate histological study, see D. O., May, 1897. Dose of the fluidextract, from fifteen to sixty minims (0.9-3.75 mils). A decoction of this root was used by the Indians as a local application in cuts and ulcers as well as internally in diarrhea and dysentery. It has also been recommended as a local application in nasal and pharyngeal catarrhs. The investigations of Lloyd (A. J. P., 1879) showed a characteristic volatile oil and a tannin together with gum and a fixed oil.