Rice

A well-known cereal grass (Oryza sativa) and its seed. This plant is extensively cultivated in warm climates, and the grain forms a large portion of the food of the inhabitants. In America it grows chiefly on low, moist land, which can be overflowed.

annual or perennial rhizomatous marsh grasses; seed used for food; straw used for paper

grains used as food either unpolished or more often polished