Mandarin oranges, also known as mandarins or mandarines, are citrus fruits in the same family as oranges, lemons, limes, and grapefruit. Compared to the common orange, mandarin oranges are smaller, sweeter, and easier to peel.
Tangerines are a type of mandarin with a deep reddish-orange color and pebbly skin. Clementines are a small, seedless type of mandarin orange that are popular because they peel so easily and are extra sweet.