Rice is the seed of the grass species Oryza sativa or less commonly Oryza glaberrima. As a cereal grain, it is the most widely consumed staple food for a large part of the world's human population, especially in Asia and Africa.

Rice is the seed of the grass species Oryza sativa or less commonly Oryza glaberrima. As a cereal grain, it is the most widely consumed staple food for a large part of the world's human population, especially in Asia and Africa.