Pears are trees of the genus Pyrus and the fruit of that tree, edible in some species. Pears are native to temperate regiona of the Old World, from western Europe and north Africa east right across Asia. They are medium sized trees, reaching 10-17 m tall, often with a tall, narrow crown; a few species are shrubby. The leaves are alternately arranged, simple, 2-12 cm long, glossy green on some species, densely silvery-hairy in some others; leaf shape varies from broad oval to narrow lanceolate. Most pears are deciduous, but one or two species in southeast Asia are evergreen.













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The flowers are white, rarely tinted yellow or pink, 2-4 cm diameter, and have five petals. Like that of the related apple, the pear fruit is a pome, in most wild species 1-4 cm diameter, but in some cultivated forms up to 18 cm long and 8 cm broad; the shape varies from globular in most species, to the classic 'pear-shape' of the European Pear with an elongated basal portion and a bulbous end. There are about 30 species of pears. Three are important for edible fruit production, the European Pear Pyrus communis cultivated mainly in Europe and North America, the Ya Pear Pyrus bretschneideri, and the Nashi Pear Pyrus pyrifolia (also known as Asian Pear or Apple Pear), both grown mainly in eastern Asia. There are thousands of cultivars of these three species.

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