Black cottonwood, poplar

It grows on the banks of large rivers, oxbow lakes and lakes. In floodplains often occupy a large area. These stands are called osokornikami. The northern border of poplar in the European part of Russia passes through Grodno – Tula – Yaroslavl – Kirov – Perm. It occurs in the Crimea and Kavkazn, grows well in the southern part of Western Siberia and the south-west of East Siberia. Outside Russia grows in Western Europe, North Africa, Asia Minor and Iran.

A large tree growing to 30 m tall, often with a trunk up to 2 m in diameter. Live to 300 years old. Stem bark is thick, dark gray, with deep longitudinal cracks. Buds greenish-brown with shiny resinous coating, with blossom very sticky and fragrant. Leaves of various shapes (from triangular to rhombic) on the edge are clearly visible glands. Petioles glabrous, flattened, almost equal to the length of the plate. Bloom before leafing, the seeds get enough sleep in late June or early July.

In poplar bark contains about 3% tannins and dyes, when used in tanning and dyeing them yellow. Kidneys contain essential oil, malic acid, resin, wax, dye chrysin and used in perfumery. Poplar is widely used in agroforestry works: when the green barriers on the river banks, the afforestation of floodplains and bottoms of ravines and in planting and growing over city roads. Decorative thanks to its powerful spreading crown, and often bizarre, because of the peculiar growths form a trunk.

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