The Canada buffaloberry (Shepherdia canadensis), also known as russet buffaloberry, soopolallie, soapberry, or foamberry (Ktunaxa: kupaʔtiǂ), is one of a small number of shrubs of the genus Shepherdia bearing edible red berries. It is widespread across most of Canada (every province except Prince Edward Island plus all 3 territories) and the western and northern United States (including Alaska).