Radishes are root vegetables, and come from the same cruciferous family as cabbage, turnips, and broccoli. The most common variety is the red radish, pictured in this recipe. White daikon radishes are quite large. Black radishes are peppery, and white on the inside. Daikon and black radishes are often grated or cut into small pieces since their flavor can be quite pungent. French breakfast radishes are usually mild in flavor, and are red with white tips. Colorful watermelon radishes are bright pink inside and green on the outside. Easter egg radishes are grown from a seed mix of radishes with different skin colors, so the radishes that pop up are a mix of purple, pink, white, and red.