The Radish (Raphanus sativus) is an edible root vegetable of the Brassicaceae family. Daikon refers to a wide variety of winter radishes from Japan and China. Radish seeds are edible, and are sometimes used as a crunchy, spicy addition to salads. Radishes can be categorized into four main types (spring, summer, fall, and winter). They may have globular or elongated roots of various colours (white, pink, red, yellow, purple, black). Enhanced SEM. Image width: 58.2 micrometers. Magnification: 1,718x if the image is printed 10 cm wide.