Millet: In ancient times, it referred exclusively to a kind of annual herb whose seeds were called millet. Leaves linear, seed yellowish, peeled called yellow rice, cooked with viscous. Is one of the important grain crops. China's ancient times with a hundred millet arranged up, take its length as a foot of the standard, called the millet ruler. Millet can be brewed and made into cakes. Pictures of millet are:

Su: commonly known as millet. Ancient corn is a general term for grains such as millet and grain. Corn grain ancient agricultural book called sorghum, glutinous corn for Panicum. Oracle "Wo" refers to corn. Later, people called a thin beam called corn, the northern people call corn millet. The simple distinction is: large spikes, long hairs and coarse grains are beams, small spikes, short hairs and fine grains are millet. The seedling is similar to thatch. Corn is still cultivated. As shown in the picture: