Prunus cerasus (sour cherry, tart cherry, or dwarf cherry) is a species of Prunus in the subgenus Cerasus (cherries), native to much of Europe and southwest Asia. It is closely related to the sweet cherry (Prunus avium), but has a fruit that is more acidic, and has greater nutritional benefits. The nutritional differences between the sweet and the tart or sour cherries are displayed at the general page for the fruit.