Barberry is a shrub belonging to the genus Berberis, known for its small, tart berries and thorny branches. These plants are often found in temperate regions and can grow up to 10 feet tall. The leaves are typically small and can vary in color, ranging from green to purple, depending on the species. The berries of the barberry plant are bright red or yellow and are edible, though they have a sour taste. They are often used in cooking, particularly in Middle Eastern cuisine, and are known for their high vitamin C content. Additionally, barberry has been used in traditional medicine for its potential health benefits.