Dried rhizome and roots of Glycyrrhiza glabra L., var. typica Regel & Herder (Spanish licorice), or of G. glabra L., var. glandulifera (Waldst. & Kit.) Regel & Herder (Russian licorice), or of other varieties of G. glabra yielding a yellow and sweet wood, Leguminosae. Habit. Southern Europe to Central Asia. Constit. 6-14% glycyrrhizin (the glucoside of glycyrrhetic acid), asparagine, sugars, resin. Used chiefly in the form of glycyrrhiza syrup. Incompat. Acids, metallic salts.