Eupatorium

(u-pat-of -re-um). A genus of composite-flowered plants. In pharmacy, Eupatorium denotes the leaves and flowering-tops of E. per folia tum, thoroughwort, or boneset. It is a bitter tonic, diaphoretic, aperient and emetic, of value in remittent and typhoid fevers, and thought, also, to be a teniafuge. E., Fid. Ext. Dose E. purpureum, trumpet-weed, another American species, has similar qualities (see Eupurpurin), but is more markedly diuretic, as is also E. amari imum, of the U. S. Many other species of this large genus are actively medicinal.