common pear Rosaceae Pyrus communis L. symbol: PYCO Leaf: Alternate, simple, ovate with a finely serrated margin, 1 to 4 inches in length, shiny green above, paler and dull below. A20 (Virus Indicator) = PI 637992 (2717.001) - Pyrus communis L. - Pedigree: Perry Pear seedling selection - Virus Biological Assays - Negative: A20-2004 PV-2002, Uncertain: NP-2003 - Traits: VIRUS INDICATOR for bark disorders Aarer Pfundbirne (3x) = PI 282966 (8.003) - Pyrus communis L. Fruit: A large edible pome (3 to 4 inches), pear-shaped. Botanical name: Pyrus communis Family: Rosaceae (rose) Deciduous; Cultivar of the common pear; 15-30 ft in height; Smooth bark when young, thickens and becomes more coarse as it ages; White flowers appear in the spring; Simple, glossy, green, serrated margins have fine teeth. The Common Pear tree is a native of Europe and western Asia where it has been known and cultivated since ancient times. The medium-sized pear … Pear (Pyrus communis) is a fruit tree that is part of the Rosaceae family. It is assumed of being native from Asia (China and Asia minor). It has a rustic aspect, the crown has a characteristic form and can reach heights up to 20 meters. It is not pretentious to the environmental factors. It is a fairly new variety, being a cross between two classic varieties, ‘Conference’ and ‘Doyenné du Comice’. Pyrus is the Latin name for pear; calleryana is named after J. Callery, a French missionary to China who collected the original tree and brought it to the Western World. The Common Pear grows well in moist soils. The bark is grayish brown and occurs in long vertical plates. The leaves are oval or round, and the petiole is hairy. Short side shoots are often thorn tipped. Moonglow pear trees (Pyrus communis "Moonglow") bloom with fragrant white flowers from April through May. The smooth, gray-brown bark becomes scaly as the tree grows. Leaves are petiolate, alternate, ovate to elliptic in outline, slightly pubescent (especially when young), and with serrate to crenate or rarely entire margins. It is planted widely in the United States and now grows wild in many parts of the country. leaves alternate on the twig The following is a list of diseases of pears (Pyrus communis. Fruit trees need a minimum of 6-8 hours sunlight daily, and need water. The fruit is an edible pome. Bacterial diseases. It is reliable, yields good crops of well-flavoured fruit, and is well suited to growing in the British climate. Pyrus communis. Pyrus communis ‘Concorde’ is an excellent choice for growing in Britain. Bartlett Pear Pyrus communis ‘Bartlett’ A European pear with large yellow fruit and smooth, juicy white flesh. ... Pyrus communis … White or rosy flowers, till 1,5 cm wide, gathered in corymbs from 3 to 7. 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