Crop plants that belong to the grass family (Gra­mineae), generally grown for their edible starchy seeds. They also are referred to as cereal crops and include wheat, rice, maize (corn), barley, rye, oats, sorghum (jowar), and millet. The grain of all these cereals is used directly for human food and also for livestock, especially maize, barley, oats, and sorghum.