Corn kernels are fruits. The inner bead of corn is fused with the residual seed coat and pericarp developed from inner cells, which is called caryopsis and is a unique fruit type of Gramineae. Corn, formerly known as maize, has other aliases: Luogubangzi, Baogu, Hosta, Corn, pearl rice, Jiangsu, Chaoshan dialect: Youmeiren, English name: corn, Latin name: Zea Mays L. Gramineae, and maize is an annual tall herb. Culms are erect, usually unbranched, with aerial roots at each node at the base. Leaf sheaths have transverse veins; Ligule membranous, about 0.2 meters long; The leaves are flat and broad, linear and lanceolate, the base is round and auriculate, hairless or flawed, the midvein is thick, and the edge is slightly rough, about 1~ 1.5 meters long. Dianthus is spherical or oblate, and its size varies with different growth conditions. Dianthus is cultivated all over China. Widely cultivated in tropical and temperate regions of the world, it is an important grain.