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Concept
Prunus avium
Summary
Prunus avium, commonly called wild cherry, sweet cherry, gean, or bird cherry is a species of cherry, a flowering plant in the rose family, Rosaceae. It is native to Europe, Anatolia, Maghreb, and Western Asia, from the British Isles south to Morocco and Tunisia, north to the Trondheimsfjord region in Norway and east to the Caucasus and northern Iran, with a small isolated population in the western Himalaya. The species is widely cultivated in other regions and has become naturalized in North America and Australia.
Prunus avium has a diploid set of sixteen chromosomes (2n = 16). All parts of the plant except for the ripe fruit are slightly toxic, containing cyanogenic glycosides.
Prunus avium is a deciduous tree growing to tall, with a trunk up to in diameter. Young trees show strong apical dominance with a straight trunk and symmetrical conical crown, becoming rounded to irregular on old trees.
The bark is smooth purplish-brown with prominent horizontal grey-brown lenticels on young trees, becoming thick dark blackish-brown and fissured on old trees.
The leaves are alternate, simple ovoid-acute, long and broad, glabrous matt or sub-shiny green above, variably finely downy beneath, with a serrated margin and an acuminate tip, with a green or reddish petiole long bearing two to five small red glands. The tip of each serrated edge of the leaves also bear small red glands. In autumn, the leaves turn orange, pink or red before falling.
The flowers are produced in early spring at the same time as the new leaves, borne in corymbs of two to six together, each flower pendent on a peduncle, in diameter, with five pure white petals, yellowish stamens, and a superior ovary; they are hermaphroditic, and pollinated by bees. The ovary contains two ovules, only one of which becomes the seed.
The fruit is a drupe in diameter (larger in some cultivated selections), bright red to dark purple when mature in midsummer, edible, variably sweet to somewhat astringent and bitter to eat fresh.
Official source
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