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Betula pendula, commonly known as silver birch, warty birch, European white birch, [2] or East Asian white birch, [3] is a species of tree in the family Betulaceae, native to Europe and parts of Asia, though in southern Europe, it is only found at higher altitudes. Its range extends into Siberia, China, and southwest Asia in the mountains of ...
Betula albosinensis - Chinese red birch Betula albosinensis var. septentrionalis - North Chinese red birch; Betula ermanii - Erman's birch; Betula jacquemontii (B. utilis subsp. jacquemontii) - White-barked Himalayan birch; Betula utilis - Himalayan birch; Hexaploid (6n = 84). Betula dahurica - Dahurian birch; Betula delavayi - Delavay's birch
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Its grounds, covering 1,700 acres (6.9 square kilometres), include cataloged collections of trees and other living plants, gardens, and restored areas, [3] [4] [5] among which is a restored tallgrass prairie. The living collections include more than 4,100 different plant species.
Despite this, the borers can still damage the trees if they are weakened by other means. Between about 1930 and 1950, many gray birch trees, along with paper birch and yellow birch (Betula alleghaniensis), were weakened by birch dieback disease, which allowed for the bronze birch borer to attack and kill the trees. [11]
Betulaceae (birch family) Betula pendula: silver birch Betulaceae (birch family) Betula platyphylla: Siberian silver birch Betulaceae (birch family) Betula populifolia: gray birch Betulaceae (birch family) Betula pubescens: downy birch Betulaceae (birch family) Betula pumila: swamp birch Betulaceae (birch family) Betula szechuanica: Sichuan birch
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 ...
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.