Black cabbage, whose real name is Bengke, is a common wild vegetable in Jiangsu Province. The leaves are mainly indigo with thick black halo, so people are more used to calling them black collapsed vegetables. The appearance of black cabbage is not amazing. It is short, almost crawling on the ground, with overlapping leaves and dark green stems. The biggest feature is natural cold resistance. Even if it is ice and snow, it is covered with thick snow. After brushing off the snow, it is still lush, full of vitality and vitality. Because of this unique style and personality, it is also called "cave". The vegetable collapse after Shuang Ling's proud snow is even more exciting. Regardless of leaves, stems, Chinese cabbage and vegetable roots, it can be used all over the body; Whether fried, boiled or pickled, the taste is very delicious, and even slightly sweet after chewing. Fan Chengda, a great poet in the Song Dynasty, liked it very much and wrote a poem to describe and praise it: "Picking an avalanche tastes like honey soup. Zhumen meat has no taste and is only an ordinary dish. "