betula pendula roth


But it seems that this is not the case. He multiplied it by grafting and in 1873 sold the whole stock, which was apparently put into commerce under the epithets atropurpurea and foliis purpureis. Betula pendula 'Youngii' Young's Weeping Birch. cit.) The various species of birch are often confused. ), forms the B. alba of Linnaeus, but most authorities now concur in separating them. Betula pendula (Common Birch) is a species of tree in the family Betulaceae. long, 1⁄3 in. They contain no less than 1.5% of flavonoids, expressed as hyperoside (C 21 H 20 O 12 = … Aim: The aim of this work was to investigate the antioxidant activity of a dry leaf extract from Betula pendula Roth. Its current distribution range covers central Europe, the Balkans and northern Europe, where the distribution is nearly continuous in … Silver birch (Betula pendula Roth) is a diploid (2 n = 28), monoecious, wind-pollinated tree with small seeds that rapidly recolonize open areas. At first the catkins are yellowish-green, turning pale brown later on. It prefers soil which contains peat or sand and iron, but otherwise the birch is a very undemanding tree and is even resistant to frost and lack of rain. 1788. (B. alba var. In German folklore, the birch is regarded as a tree of life; this is reflected in the tradition of the maypole. Central and northern Europe, in southern Europe only in the mountains. – An endemic of Mount Etna, Sicily, this is perhaps no more than a local race of B. pendula, differing in its smaller leaves to about 1 in. The birch is in bloom from April to May. So far as is known the following specimens are of the true clone, which was introduced to Britain before 1885: Taymouth Castle, Perths., 90 × 51⁄4 ft, grafted at 1 ft (1961); Tittenhurst, Berks., 75 × 41⁄2 and 69 × 41⁄4 ft, both grafted at 5-6 ft (1963); Sheffield Park, Sussex, pl. 1910, 70 × 4 ft (1974); Taymouth Castle, Perths., 110 × 53⁄4 ft (1983). From these, and hence from the type-tree, all the true Ornäs birches are descended by vegetative propagation. Betula pendula is known as a white birch wood and is classified in the mature trees group. pendula Ait. The species is easily distinguished from B. pubescens by the warts on the young branchlets and by the absence of down on all the younger vegetative parts. If grafted on a high standard it makes a small mushroom-headed tree. A.Vogel remedies, nutritional products and health literature can be found in many countries. It has simple, broad leaves, brown flowers, and dry fruit. cv. taxonomy author, year Roth year synonym B. verrucosa Ehrh. † cv. Silver birch and downy birch resemble each other in their general appearance, i.e. In Europe, two commercially important treelike birch species occur naturally: silver birch (Betula pendula Roth) and downy birch (Betula pubescens Ehrh.). According to him, it has been planted in Sweden in place of the true and rarer ‘Dalecarlica’, but so far as is known it has not been cultivated in this country. Common Birch is a photoautotroph. as well as hybrids of both species, folium (birch leaf) i) Herbal substance whole or fragmented dried leaves ii) Herbal preparations - powdered herbal substance - dry extract with water (3-8:1) It resembles the silver birch and has the same chromosome number, the main mark of difference being the bark, which is dark grey or blackish brown. The Eurasian weeping birch (Betula pendula) is extensively cultivated throughout the temperate range of the flora, and it has been known to persist or to become locally naturalized in several areas, particularly in … Bonamy’s nursery, Toulouse, around 1866. cv. Its range extends into Siberia, China, and southwest Asia in the mountains of northern Turkey, the Caucasus, and northern Iran. Birch can be found growing at altitudes of up to 2,000 metres. 4, p. 185 (1878). cv. If on its own stem it must be carefully trained. ‘Tristis’. Betula pendula, which occurs in the wild all over central Europe, varies very little in shape and size. pendula (Roth) Cariot & St.-Lag., 1889 Betula alba var. ; B. alba L., in part; B. alba var. The type was grown in Späth’s nurseries as “B. ‘Dentata Viscosa’. For copyright and licence information, see the Licence page. alba L., in part; B. alba var. Known since 1867. Betula pendula Roth, Tent. But it was first described by André as B. vulgaris purpurea in Ill. However, cultivated forms – such as the weeping birch, B. pendula f. tristis - sometimes have different shapes and grow to different heights. It has a characteristic, snow-white coloured epidermis of the bark which usually peels off in horizontal strips to reveal a harder black bark which covers the trunk right up into the crown.

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