Black Cohosh Black cohosh, also known as black snakeroot or squaw root, is native to North America. It is a member of the buttercup family and grows in clumps that can be as high as four to seven feet. It produces beautiful spikes of white fragrant flowers in the summer. Black cohosh has been used for centuries for rheumatism, yellow fever, snakebites, kidney problems as well as a long list of gynaecological issues. By the beginning of the 19th century it had become popular in Europe, especially as a remedy for menopausal symptoms: studies have shown that black cohosh can help to reduce hot flushes, night sweats, disturbed sleep, mood swings, depression and anxiety.