No, cauliflower is not rape. Although they all belong to Cruciferae, they are similar in appearance, but there are some obvious differences. Cauliflower has thick stems and small leaves, and mainly grows in the stems, while rape stems are wrapped in leaves. Chinese cabbage is an edible plant, and its stems and leaves are edible. Although rape flower contains protein, dietary fiber, vitamins and other nutrients, it has certain toxicity and its stems are inedible. In addition, rape flower is mainly used for oil extraction or as feed, while cauliflower has high edible value and medicinal value.