A medicinal plant, the thoroughwort (Eupatorium perfoliatum). Its properties are diaphoretic and tonic.

Eupatorium perfoliatum Leaves Bitter tonic, laxative, immune stimulant, febrifuge

Eupatorium perfoliatum It has been used for many years to help relive the aches and pains associated with Influenza. It is also helpful in clearing mucous congestion from the upper respiratory tract.

European herb having small white, pink or purple flowers; naturalized as a weed in North America

perennial herb of southeastern United States having white-rayed flower heads; formerly used as in folk medicine