USEFUL FUNCTIONS OF TREES

USEFUL FUNCTIONS OF TREES

Today, we realize that, besides being a source of raw materials, trees are of even greater importance for their role in the regulation of climate, water management, hygiene, health, recreation; and, last but not least, in beautifying the environment. The past century has witnessed a rapid increase in world population, and the progress of science…

Box elder Acer negundo

Box elder Acer negundo

Aceraceae The Box-elder is a native of North America, where it has a wide range of distribution, extending from California to Florida and northwards to Canada. It was introduced into Europe in 1688, and today is cultivated throughout the entire Continent, tolerating even the climate of northern Europe. In some areas it is well naturalized…

False Acacia or Black Locust Robinia pseudoacacia L.

False Acacia or Black Locust Robinia pseudoacacia L.

Leguminosac The false acacia is a native of North America, where it grows in mixed broad-leaved woods from Pennsylvania to Georgia and Oklahoma. It was named after the French botanist Jean Robin, who introduced it into Europe in 1601. Today, it is widespread throughout western, central, eastern and southern Europe and in some areas is…

London Plane Platanus x hispanica (P. x acerifolia WILD.)

London Plane Platanus x hispanica (P. x acerifolia WILD.)

Platanaceae The London plane tree is a natural hybrid between the oriental plane (Platanus orientalis L.), and the American plane or buttonwood (Platanus occidentalis L.),and was first recorded about 1663. It is more resistant to frost than the parent trees and thus widespread throughout Europe all the way to the Baltic Sea. It is a…

Whitebeam Sorbus aria

Whitebeam Sorbus aria

Rosaceae The whitebeam is widespread in southern, central and western Europe, including Great Britain, the southern tip of Sweden marking the northernmost limit of its range. Throughout this area, however, it occurs fairly sparsely. A light-demanding and warmth-loving species, it is often found growing on chalk or limestone hills facing south. In such conditions, it…

Silver Birch Betula pendula ROTH (Syn. B. alba L. and B. verrucosa EHRH.)

Silver Birch Betula pendula ROTH (Syn. B. alba L. and B. verrucosa EHRH.)

Betulaceae The birch is a tree of the northern hemisphere and its several species are distributed throughout Europe, America and Asia. Most common on the Continent is the silver birch growing in the wild from Italy to the Balkan Peninsula, northwards beyond the Arctic Circle and eastwards far into Siberia. In central Europe it is…