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Description. Betula nigra is a deciduous tree growing to 25–30 meters (80–100 ft) with a trunk 50 to 150 centimeters (20 to 60 in) in diameter. The base of the tree is often divided into multiple slender trunks. [2][3] Bark. Bark characteristics of the river birch differ during its youth stage, maturation, and old growth.
Beech bark disease is a disease that causes mortality and defects in beech trees in the eastern United States, Canada and Europe. [1][2][3] In North America, the disease occurs after extensive bark invasion by Xylococculus betulae and the beech scale insect, Cryptococcus fagisuga. [4] Through a presently unknown mechanism, excessive feeding by ...
Betula lenta is a medium-sized deciduous tree reaching 30 m (98 ft) tall, exceptionally to 35 metres (115 ft) [2] with a trunk up to 60 cm (2.0 ft) diameter. Heights of 50 feet (15 m) to 80 feet (24 m) are more typical. In younger trees the bark is characteristic of most birches, with smooth bark and distinct horizontal lenticels.
Description. Leaves are doubly serrated with sharp teeth. Betula papyrifera is a medium-sized deciduous tree typically reaching 20 metres (66 feet) tall, [4] and exceptionally to 40 m (130 ft) with a trunk up to 75 centimetres (30 inches) in diameter. [9] Within forests, it often grows with a single trunk but when grown as a landscape tree it ...
Paper birch, sometimes also called white birch, is one of the most common types of birch trees. It's named for its recognizable white, peeling bark. Paper birch is a single- or multi-trunked tree ...
A Russian birch bark letter from the 14th century Birchbark shoes. Birch bark or birchbark is the bark of several Eurasian and North American birch trees of the genus Betula.. The strong and water-resistant cardboard-like bark can be easily cut, bent, and sewn, which has made it a valuable building, crafting, and writing material, since pre-historic times.
Alnus glutinosa, the common alder, black alder, European alder, European black alder, or just alder, is a species of tree in the family Betulaceae, native to most of Europe, southwest Asia and northern Africa. It thrives in wet locations where its association with the bacterium Frankia alni enables it to grow in poor quality soils.
It is a deciduous shrub or small tree growing to 14 m (46 ft) high, up to 25 centimetres (10 inches) thick. [2] It tends toward epicormic growth, with many small limbs sprouting from the trunk and causing the wood to be full of small knots. The bark is dark red-brown to blackish, [2] and smooth but not exfoliating.