Acacia, desert shrub, and acacia short-grass shrub grow in the northern desert and the grasslands of the west. The broad-leafed tropical woodland and forest region is for the most part in the southwest, where areas of luxuriant growth and closed forests are found; grass covers much of the steppe area of the southeast. Date palms line the banks of the Nile. Wildlife includes most of the mammals, birds, and reptiles common to central Africa. Many varieties of fish are found in the rivers and in the coastal waters of the Red Sea.