Cauliflower is an annual plant that reproduces by seed. Typically, only the head is eaten – the edible white flesh sometimes called “curd”. The cauliflower head is composed of a white inflorescence meristem. Cauliflower heads resemble those in broccoli, which differs in having flower buds as the edible portion.
Raw cauliflower is 92% water, 5% carbohydrates, 2% protein, and contains negligible fat (table). A 100 gram reference amount of raw cauliflower provides 25 calories, and has a high content (20% or more of the Daily Value, DV) of vitamin C (58% DV) and moderate levels of several B vitamins and vitamin K (13-15% DV; table). Contents of dietary minerals are low (7% DV or less).