Compound leaves are a type of foliage consisting of two or more leaflets connected to the same stem. They are common in flowering plants and are often seen in trees and shrubs. In Egypt, some of the most common plants that have compound leaves include the Acacia nilotica, the Acacia seyal, the Prosopis juliflora, and the Ziziphus spina-christi. Compound leaves are a defining feature of these plants, and their presence can be used to differentiate them from other plants. Compound leaves help to reduce water loss and provide more surface area for photosynthesis. They also help protect the plant from the strong sunlight and harsh environmental conditions that are common in Egypt.