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The silver birch is a hardy tree, a pioneer species, and one of the first trees to appear on bare or fire-swept land. Many species of birds and animals are found in birch woodland, the tree supports a wide range of insects and the light shade it casts allows shrubby and other plants to grow beneath its canopy. It is planted decoratively in ...
Betula cordifolia - Heart-leaf birch or mountain paper birch; Betula pendula - Silver birch; Betula mandschurica - Manchurian birch Betula mandschurica var. japonica - Japanese birch; Betula neoalaskana - Alaska birch or Yukon birch; Betula occidentalis - Water birch or red birch (B. fontinalis)
Curly birch [1] (Betula pendula var. carelica) is a variant of the plant species silver birch (also known as warty birch, European white birch, or East Asian white birch) with a genetic defect that causes the tree to twist on the stem with curls. The annual rings are oriented incorrectly, which gives the wood a fiery appearance.
Euceraphis betulae, the birch aphid or silver birch aphid, is a species of aphid in the order Hemiptera.It is a tiny green insect with a soft body and wings. It is found living on the European silver birch tree (Betula pendula) where it feeds and multiplies on the buds and leaves by sucking sap.
The original Ornäs birch was discovered in 1767 by Hans Gustaf Hiordt in the village of Ornäs, in the central Swedish province of Dalarna. Hiordt sent a description of the tree to the University of Uppsala botanist Carl Linnaeus. Cuttings were taken from the original tree, from which all Ornäs birch trees have been propagated. The tree fell ...
Pollarding tends to make trees live longer by maintaining them in a partially juvenile state and by reducing the weight and windage of the top part of the tree. [6] Older pollards often become hollow, so it can be difficult to determine age accurately. Pollards tend to grow slowly, with denser growth-rings in the years immediately after cutting.
The birch is New Hampshire's state tree and the national tree of Finland and Russia. The yellow birch is the official tree of the province of Quebec (Canada). The birch is a very important element in Russian culture and represents the grace, strength, tenderness and natural beauty of Russian women as well as the closeness to nature of the ...
Betulaceae flowers are monoecious, meaning that they have both male and female flowers on the same tree. Their flowers present as catkins and are small and inconspicuous, often with reduced perianth parts. These flowers have large feathery stamen and produce a high volume of pollen, as they rely on wind pollination.