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Both male and female clones are grown. This is the tree most commonly grown in Great Britain and Ireland as Lombardy poplar. [11] 'Manchester' is a cultivar of P. nigra subsp. betulifolia widely planted in northwest England. It is a male clone, and currently seriously threatened by poplar scab disease. [12] [13]
France is Europe's leading poplar producer. Although poplars account for no more than 3% of the country's hardwood forest area, on an annual average they supply more than 20% of its timber production (mainly peeled wood). In the early 2000s poplar plantations accounted for almost 22 mm 3 of standing area and annual production of around 2.8 mm 3 ...
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Populus is a genus of 25–30 species of deciduous flowering plants in the family Salicaceae, native to most of the Northern Hemisphere.English names variously applied to different species include poplar (/ ˈ p ɒ p l ər /), aspen, and cottonwood.
The hybrid with Populus alba (white poplar), known as grey poplar, Populus × canescens, is widely found in Europe and central Asia. Hybrids with several other aspens have also been bred at forestry research institutes in order to find trees with greater timber production and disease resistance (e.g. P. tremula × P. tremuloides , bred in ...
Size of this PNG preview of this SVG file: ... Map of the region of Lombardy, Italy (English version) ... current: 02:14, 6 December 2010:
Lombardy [b] (Italian: Lombardia; [c] Lombard: Lombardia) [a] [d] is an administrative region of Italy that covers 23,844 km 2 (9,206 sq mi); it is located in northern Italy and has a population of about 10 million people, constituting more than one-sixth of Italy's population.
Lombardy by altimetric zones. Lombardy is an administrative region of Italy that is split into four geographic regions — mountains, alpine forest, and the upper and lower plains south of the Po river. These are crossed and dotted by dozens of rivers and lakes, the latter of which include some of the largest in Italy.