1) American hellebore 2) False hellebore 3) Hellebore 4) Indian poke 5) Veratrum viride 6) White hellebore 
• (n.) A perennial white-flowered herb of the order Ranunculaceae and genus Cimiciguga; bugwort. There are several species.
any of about 15 species of tall perennial herb constituting the genus Cimicifuga of the buttercup family (Ranunculaceae) native to North Temperate ...
An eastern North American perennial herb. A substance obtained from the root of the plant has been used in some cultures to treat a number of medical problems. It is being studied in the treatment of hot flashes and other symptoms of menopause. The scientific name is Cimicifuga racemosa. Also called black cohosh, black snakeroot, bugwort, and rattl...
Bug'bane` noun (Botany) A perennial white-flowered herb of the order Ranunculaceæ and genus Cimiciguga ; bugwort. There are several species. 
[n] - a plant of the genus Cimicifuga having flowers in long racemes or panicles reported to be distasteful to insects
noun a plant of the genus Cimicifuga having flowers in long racemes or panicles reported to be distasteful to insects
any of several tall, erect plants belonging to the genus Cimicifuga, of the buttercup family, as C. americana, of the eastern U.S., having loose, elongated clusters of white flowers.