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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]
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 selection of increasingly fast-growing cultivars has at least halved the revolution in poplar plantations.. Transgenic poplars are being or have been tested, in North America and in France in particular, with poplars intended for energy production and poplars potentially destined for the paper industry, [3] [4] as well as with short rotation coppice or very short rotation coppice, with ...
Phellodendron amurense (Amur cork-tree) - introduced; Platanus (planes) Platanus × hispanica (London plane) - introduced; Platanus occidentalis (American sycamore) Populus (poplars, balsam poplars, aspens, cottonwoods) Populus × acuminata (Lanceleaf cottonwood) Populus alba (White Poplar) - introduced; Populus angustifolia (Narrowleaf cottonwood)
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By contrast, the (roughly) 300-year-old Ice Glen pine in Stockbridge, Massachusetts shows approximately half the annual growth rate of trees in the 90- to 180-year age range, averaging just 5.8 cubic feet (0.16 m 3) per year over a five-year monitoring period. Volume increased as a result of increases in both height and girth.
The public is invited to the historic site at 809 Forbes Trail Road at 4:30 p.m. Sunday as officials dedicate a recently planted tulip poplar. The 5-foot sapling, with leaves ...
Many of the cottonwoods grown commercially are the hybrid of eastern cottonwood and black poplar, Populus × canadensis (hybrid black poplar or Carolina poplar). Cottonwood bark is often a favorite medium for artisans. The bark, which is usually harvested in the fall after a tree's death, is generally very soft and easy to carve.