Cassava (Manihot esculenta), also known as cassava, is a root crop that originated in South America but is now widely cultivated throughout the world. Cassava is a shrubby plant with large green star-shaped leaves. Cassava tubers are the most commonly consumed part of the plant and are usually white or yellowish in color. Cassava tubers are high in starch and carbohydrates, making them a good source of energy.