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Betula pubescens
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Betula pubescens, commonly known as downy birch and also as moor birch, white birch, European white birch or hairy birch, is a species of deciduous tree, native and abundant throughout northern Europe
Betula pubescens Burgwald 002
Betula pubescens Burgwald 002
The branches are upward or horizontally spread, but never pendulous (as with silver birch)
The branches are upward or horizontally spread, but never pendulous (as with silver birch)
Betula pubescens near a path encircling a lake inside the Arctic Circle in Tromsø
Betula pubescens near a path encircling a lake inside the Arctic Circle in Tromsø
Arctic downy birch forms the tree line in most of Fennoscandia
Arctic downy birch forms the tree line in most of Fennoscandia
Tree line
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The tree line is the edge of a habitat at which trees can grow and beyond which they cannot. It is found at high elevations and high latitudes. Beyond the tree line, trees cannot tolerate the environm
Betula pubescens
…downy birch woodland, but that cover is reduced to about one percent of the land surface today. Varieties and cultivars Arctic downy birch forms the tree line in most of Fennoscandia Three varieties are recognised, the nominate Betula pubescens var. pubescens, B. p. var. litwinowii (distributed in the Caucasus…
Tree line above St. Moritz, Switzerland. May 2009
Tree line above St. Moritz, Switzerland. May 2009
In this view of an alpine tree line, the distant line looks particularly sharp. The foreground shows the transition from trees to no trees. These tree
In this view of an alpine tree line, the distant line looks particularly sharp. The foreground shows the transition from trees to no trees. These trees are stunted in growth and one-sided because of cold and constant wind.
Alpine tree line of mountain pine and European spruce below the subalpine zone of Bistrishko Branishte, with the surmounting Golyam Rezen Peak, Vitosh
Alpine tree line of mountain pine and European spruce below the subalpine zone of Bistrishko Branishte, with the surmounting Golyam Rezen Peak, Vitosha Mountain, Sofia, Bulgaria
An alpine tree line in the Tararua Range
An alpine tree line in the Tararua Range