Green beans, 

kidney beans, also known as Sauteed Green Beans jade beans, knife bean, twining annual herbaceous plants, is the type of bean pod varieties, there are two types of vine and dwarf, rich in carbohydrates, protein and fat, has high nutritional value. Native to central and South America, the southern provinces of China in spring and autumn two seasons can be cultivated. Its tender pod can be fried, can also be made into salted products and canned.