Black hellebore (Helleborus niger, Helleborus nigra) is a perennial plant, native to Central and Southern Europe, Greece, and Asia Minor, and is cultivated largely in the United States as a garden plant. Black hellebore is not the same as false hellebore, American hellebore, white hellebore, or other Veratrum species.
Black hellebore is a poisonous plant that is toxic when taken in even small-to-moderate doses and should not be used without the supervision of a medical professional. It was formerly used for palsy, insanity, dropsy, and epilepsy but is seldom currently used for these or any other uses.
Anemonic acid, anemonin, bear's-foot, cardioactive saponins, Christ Herbe, Christmas flower, Christmas herb, Christmas rose, Christmas rose plant, helleborein, helleborin, Helleborus niger, Helleborus nigra, melampode, protoanemoni, Ranunculin, ranunculosides, Ranunculaceae (family), saponins, sesquiterpene lactone glycosides, setter grass, setter wort, unsaturated lactone, winter rose.
These uses have been tested in humans or animals. Safety and effectiveness have not always been proven. Some of these conditions are potentially serious, and should be evaluated by a qualified healthcare provider.