1. Rice, namely rice, is one of the important food crops for human beings and an annual aquatic herb of Gramineae. The culm is erect, with a height of 0.5- 1.5 m, which varies with varieties. Rice is an important grain widely planted in tropical Asia. Southern China is the main rice-producing area, and it is planted in northern provinces. The seeds are mainly divided into two subspecies, indica rice and japonica rice. Subspecies include many cultivated varieties. Use mature caryopsis as medicine. Sweet and warm. And digestion, spleen and appetite.

Farming and eating have a long history. Half of the world's population eats rice, mainly in Asia, southern Europe and parts of tropical America and Africa. The total output of rice ranks third in the world, lower than that of corn and wheat, but it can support the life of a large population.

Second, millet is called yellow rice after peeling, which is slightly larger than millet and sticky after cooking. Panicum miliaceum, with linear leaves and light yellow seeds, can make wine and cakes. Panicum miliaceum, with linear leaves and pale yellow fruit.

Three, millet refers to millet or millet, an ancient edible crop in China, which is called non-sticky millet and sorghum.

4. Wheat is wheat, which is a general term for wheat plants. It is a monocotyledonous plant and a gramineous plant widely planted all over the world. The caryopsis of wheat is one of the staple foods of human beings. After being ground into flour, it can be made into bread, steamed bread, biscuits, noodles and other foods. After fermentation, it can be made into beer, alcohol, white wine (such as vodka) or biomass fuel.

Wheat is rich in starch, protein, fat, minerals, calcium, iron, thiamine, riboflavin, nicotinic acid, vitamin A and vitamin C, etc.

5. Phragmites australis is the general term for beans.

Extended data:

Five kinds of grains commonly known as "five grains". There are many different opinions about "five grains" in ancient times, and the most important ones are two: one refers to rice, millet, millet, wheat and glutinous rice; The other refers to hemp, millet, millet, wheat and glutinous rice. The difference between the two is that the former has rice without hemp, while the latter has hemp without rice. The ancient economic and cultural center was in the Yellow River valley, and the main producing area of rice was in the south, while the cultivation of rice in the north was limited, so there was no rice in the "five grains" at first.

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