Rice
Oryza sativa
Scientific classification
Kingdom:	Plantae
Division:	Magnoliophyta
Class:	Liliopsida
Order:	Poales
Family:	Poaceae
Genus:	Oryza

Rice can come in many shapes, colours and sizes

Iranian rice.

Rice (Oryza sativa) is a type of cereal and food. In origin, it is a swamp grass. It is eaten as staple food in many parts of Asia. It is grown in warm parts of the world, mainly Asia, Africa, northern Italy, and the west coast of North America.

Rice accounts for 80% of the calories eaten in Asia, or one-fifth of the calories eaten worldwide by humans. It is the agricultural commodity with the third-highest worldwide production (rice, 741.5 million tonnes in 2014), after sugarcane (1.9 billion tonnes) and maize (1.0 billion tonnes). However, judged by value, the world trade in wheat is greater than all other crops combined. All these cereals are grasses.