Rice, commonly known as rice, is an annual aquatic herb in the Poaceae family (there are already perennial rice varieties). The stem is upright, 0.5-1.5 meters high, and varies depending on the variety. Leaf sheaths are hairless and loose; Leaf tongue lanceolate; Leaves linear lanceolate, about 1 cm wide, hairless, rough. Large and sparse inflorescence with rough edges; The spikelet contains one mature flower; Yingmin is extremely small, leaving only a crescent shaped mark at the tip of the spikelet stalk, cone-shaped; On both sides of the fertile flower, the lemma is thick in texture, with 5 veins and ridges on the midrib. The surface has small milky protrusions in a grid shape, thick in paper, and densely covered with fine hairs; The palea and lemma are homogeneous, with three veins and a pointed tip without a beak; The stamens and anthers are 2-3 millimeters long.