Quercus robur, commonly known as the English oak, is a deciduous tree that can grow up to 40-100 feet (12-30 meters) tall and 33-82 feet (10-25 meters) wide. The tree has a broad, rounded crown with a short trunk and deeply furrowed bark. The leaves are lobed and can grow up to 4-7 inches (10-18 cm) long and 2-4 inches (5-10 cm) wide.