Non-bitter vegetables have thicker leaves than bitter vegetables; The flowers of sonchus oleraceus are yellow, smaller than those of dandelion, and single-layered. There are starter dishes, bitter vegetables, dandelions, green vegetables and milk vegetables (milkweed, Sichuan), all of which are different dishes. The picture here is Ququ cuisine. It grows in the northern plain of China, representing the areas where the Yellow River flows into the sea-Binzhou, Dongying and Dezhou.