A nectarine is a round, juicy fruit which is similar to a peach but has a smooth skin. Smooth-skinned peach \(Prunus persica nectarina'), grown throughout warmer temperate regions. They result when some peaches self-pollinate or are crossed so that they express a genetic factor for smooth skin. Nectarines are commonly eaten fresh or cooked in desserts and jams; they are a good source of vitamins A and C