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Did you know?
When growing, cauliflower starts out resembling broccoli, according to the University of Arizona. However, while broccoli opens outward to sprout green florets, cauliflower forms a compact head, called a curd, composed of undeveloped flower buds. The buds are protected from sunlight by the heavy green leaves that surround the head. This prevents chlorophyll from developing, so the head remains white.