28
Dec
2010
Betula alba
Trees and shrubs | Magnoliopsida
4
0

Scientific Name - Betula alba

Synonyms -

Popular names - mesteacan.

Distribution and Habitat - originating from northern Europe to eastern Asia, increases in association with petreae Quercus, Fagus sp. and Abies sp.

Description - tree 20 m tall, stem right, cylindrical, 40-60 cm diameter. Bark white, smooth, flaking in circular strips to form the trunk ritidom black, deeply cracked. Crown irregular, thin shoots, stems pendent, warty, glabra. Leaves rare diamond-ovate, 3-7 x 3-4 cm, top acuminata, base cunea or cropped, double-side evenings, stems 2-3 cm pendulum. Unisexuat Flowers monoecious, clustered in Amenti, the men formed fall 2-3 to the top of the shoots, female flowers appear in spring, in the form of elongated cones. Blooms in April-May, anemofila pollination.

Rate of growth - and growing rapidlyin youth.

Tolerance - do not tolerate shading and dry atmosphere. Resistant to cold and air pollution.

Requirements - Reaven soils in sunny exhibitions.

Propagation - by seeds, in September, immediately after harvest. Spread seeds on the soil surface and then cover it with leaves.

Cultivars - elegans'''- thin branches, recurbate from the base, pendula stems, small leaves.

Properties and Uses - ornamental species, crown shape and color through decorative bark, in parks and gardens.

Yellowish white wood without heartwood, light, elastic, soft.

The bark is rich in tannins, is used in cosmetics.

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