There's no difference between jiangdou and cowpea, they are the same kind of soybean product, just because they are called by different names in different regions. The bean belongs to the legume family, and is said to be native to India and the Middle East, but has long been cultivated in China.

Jiangzu and cowpeas are not different, they are the same kind of bean products, just because in different regions have different names. China's ancient cowpea called JiangDou, and then there are some areas have been used this call. In addition, cowpeas also have ginger beans, eighteen beans, pulp beans and other names.

JiangDou belongs to the legume family and is a cultivated annual plant, which is said to have originated in India and the Middle East, but has been cultivated in China for a long time. The appearance of Edamame is characterized by compound leaves, 3 leaflets and white, purple or yellowish flowers.

There are many varieties of Edamame, but most are eaten as vegetables. And cowpeas can be classified into white-skinned cowpeas, green-skinned cowpeas, flower-skinned cowpeas, red-skinned cowpeas and so on depending on the color of the skin. And different varieties of cowpeas respond differently to light duration, for example, the red-billed swallow cowpea is not sensitive to light duration, while the hairy taro cowpea from Shanghai and Yangzhou is very sensitive to light duration.