Plums and sprouts are the most precious fruits, and mustard and ginger are the most important vegetables. Legend has it that ginger was discovered by Emperor Yan of Shennong when he tasted a hundred herbs. Emperor Shen Nong Yan is the ancestor of the Chinese nation. He tasted all kinds of herbs, found medicinal materials and taught people to treat diseases. Once, Shennong took his dog to the mountains to taste herbs, tasted poisonous plants and was poisoned. His stomach was so painful that he rolled on the ground and soon fainted. I don't know how long it took, but Shennong was awakened by a very spicy smell. It turns out that his dog has a khaki thing next to his nose. I feel fragrant, spicy and cold. After a while, my stomach growled and I had diarrhea, and all the symptoms of poisoning disappeared. Head is not dizzy, chest is not stuffy, hands and feet are strong. He asked where the dog found it, and the dog took him to a nearby bush with pointed leaves and straight poles. He dug it up and found that it was the kind of thing he ate. Shennong decided to give this life-saving grass a good name. His surname is Jiang, so he named this plant "Jiang", which means to bring himself back to life.