What is betula?
Many plants in the genus Betula are durable, short -term, deciduous birch. Arctic birch or b. Nana , which is native in the Arctic areas, is a ground shrub, but most of them are erected trees. There are about 60 species that belong to the Betulavae family in the family Betula . At least 10 species naturally grow in US and Canada regions, and the remaining species are originally from regions in Europe; parts of Asia, including Japan and Korea; and the Himalayas. Although people connect white, paper bark with birch trees, many species do not have white bark. Papyifera . With proper growth, this birch can grow 70 feet (about 21 m) or higher. Like his cousin, European white birch or b. Pendula , its white peel is easy to peel. Paper birch is originally from the northern US and most of Canada and Alaska. The landscapes of the Azales have introduced the European white belly into many areas of North America. nigra a b. b. niGra , commonly called The Red or River Birch, has a bark that often turns dark brown or black with maturity. Some species and their varieties or cultivars have reddish gray, pinkish white or red -brown bark. The bark of many species darkens with age.
Another birch is that the bark often peel into long horizontal strips. Most types betula have a waterproof bark, and therefore many American and Canadian natives used it for canoes, cooking containers and roof material. With traditional techniques, canoes builders peeled bark of large trees in one, the whole leaf. In modern times, canoes builders make Canoes for tourists and decorations. Birch wood was not used in canoes because it is too dense and heavy to float.
birchs have a part of the Catkins reproductive system. The cat is a form of inflorescence, which means that several flowers are arranged on one axis.Catkins birch is often final and consists of scales and small flowers. Usually these flowers are in plants betula without petals and arranged at the forefront. In most birch, when Catkin matures, it breaks down and spreads its seeds.
In general, Catkins differs in size depending on gender. Male Catkins, or Stamine Strobili, range from 1 inch to 4 inches (about 2.5 to 10 cm), while the female, or pestil Strobili, grow up to 1.5 inches (about 2 cm) long. Some betula trees have tassels, suspension Catkins and others have round, erected by those that resemble miniaturized pinemas. Usually, the staminal catkins develop in the previous sea.
In landscaping, birch plants are often samples. The foresters set lumber birch to make veneer, furniture and pulp. Usually it provides very strong, close wood and car builders used it for wheel hubs. In parts of Europe, European white birch is an important commercial product.
Medicinely, parts of most betula are emetic and katartic. The native Americans used the decoction of bark to clean the blood. Some of the betula trees are a source of Wintergreen oil, which people usually use as an aroma, but have several healing properties.
Inner bark of yellow birch or b. alleghaniensis , is edible. In the past, the native Americans have cooked or used dried and powder form in a process similar to bread production. Usually they ate it only at the time of famine. Some people harvest and process a SAP by a method that is comparable to a maple bowl harvest. Several breweries produce beer from sap and other people drink it unfermented.