Extended data:
1, because of its sound, crispness and coolness, was vividly called "Xiangcai" by Premier Zhou Enlai in 1960s, also known as "Shancicai".
2. Tribute dishes are also called dried moss, loud vegetables, mountain thorns and moss. The color is light green, the texture is refreshing, the taste is like jellyfish, and the edible value is extremely high. It is a green leafy vegetable, which is made by peeling, splitting and drying the stems in autumn. In Suining county, Chinese milk vetch has been planted for more than 2000 years. It is a precious vegetable in the north temperate zone, belonging to Compositae, Lettuce and Panicum.
It contains glutamic acid, vitamin C, vitamin D, zinc, iron, calcium, selenium and so on. It has certain therapeutic effects on human development, anti-aging and cancer prevention. It is a banquet food, and it was known as "tribute food" in the Qing Dynasty. Now the products sell well in Southeast Asia and other places. It was once called a "resounding dish" by Premier Zhou Enlai.
References:
Baidu Baike Gongcai