Sambucus racemosa is a species of shrub commonly known as red elderberry. It belongs to the genus Sambucus and the family Adoxaceae. The shrub is native to North America, Europe and Asia, and is typically found growing in moist forests, woodlands and riparian areas. There are several synonyms for Sambucus racemosa, including Sambucus arborescens, Sambucus borealis, and Sambucus pubens. It is a popular ornamental plant in gardens, owing to its showy clusters of bright red berries. In herbal medicine, the bark and berries of Sambucus racemosa are used to treat various ailments, ranging from colds and flu to digestive problems.