Are soybeans and edamame the same thing?!
Soybean is not just soy, and green beans. But most soybeans are soybeans, soy is a package of the skin. Vegetable soybean is an alias. Legume soybean soybean cultivars of the genus, native to China, about 4,000 years of cultural history, BC began to spread around the world. The Nenjia soybean, fresh vegetables and grains as food, the characteristics of our country, especially in the Yangtze River and southwest are more commonly soybeans, is fresh and even the pods of the soybeans, then dried in the sun, also known as soybean. Soybean crop is annual, stem diameter hard and have fine hairs, it's as flat-shaped pod, pods also have hair, so known as soybean, when fresh, tender green pods, green cute.
Quote from Wiki:
"Edamame (枝豆?) (English pronunciation: /??d??mɑ?me?/) is a preparation of immature soybeans in the pod commonly found in Japan, China, Hawaii, and Korea."