This root grows wild in this country, and is found plentifully in Vermont. It was formerly collected for exportation, and large quantities of it were sent to China, where it was greatly valued.

At the present time, the foreign Gentian root seem; to be used most. It is a bitter tonic, and as such it is unexcelled, although for mild cases it should always be combined with less intense agents. Its chief action is upon the liver; with dyspepsia it is most excellent. For ague it may prove effective when other agents fail, taken for several hours before the chill, in hourly doses of one-half teaspoonful of the tincture with a little Capsicum. Gentian will also promote appetite and digestion, stimulate the circulation, thoroughly toning the digestive organs, and is especially valuable in languid conditions and in that of general debility. It gives the best results in biliousness and jaundice. It is a good vermifuge. In sensitive stomachs it should be given in very small doses as it is intensely bitter and in large doses might cause nausea. Dose is from 10 to 30 minims.