Cherry tree
Cherry fruits are borne by members of the subgenus Cerasus which is distinguished by having the flowers in small corymbs of several together (not singly, nor in racemes), and by having a smooth fruit with only a weak groove or none along one side. The subgenus is native to the temperate regions of the Northern Hemisphere, with two species in America, three in Europe, and the remainder in Asia.The majority of eating cherries are derived from either Prunus avium, the wild cherry (sometimes called the sweet cherry), or from Prunus cerasus, the sour cherry.
The cultivated forms are of the species Wild Cherry (P. avium) to which most cherry cultivars belong, and the Sour Cherry (P. cerasus), which is used mainly for cooking. Both species originate in Europe and western Asia; they do not cross-pollinate. Some other species, although having edible fruit, are not grown extensively for consumption, except in northern regions where the two main species will not grow. Irrigation, spraying, labor and their propensity to damage from rain and hail make cherries relatively expensive. Nonetheless, there is high demand for the fruit.


