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Taxonomy. Betula nigra is a tree that falls into the family of Betulaceae, which is commonly known as the Birch or Alder Family. This family comprises six genera (Alnus, Betula, Carpinus, Corylus, Ostrya, and Ostryopsis) and includes alders, birches, hornbeams, and hazelnuts. Species within this family, along with Betula nigra, are shrubs or ...
Betula populifolia, known as the gray (or grey) birch, is a deciduous tree in the family Betulaceae. It is native to eastern North America and is most commonly found in the northeast United States as well as southern Quebec, New Brunswick, and Nova Scotia. [1] The tree is a pioneer species that is commonly found in sites following disturbance ...
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.
Betula. 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 ...
Bronze birch borer is a major pest among birch species. [25] Under repeated infestation or stress to the tree from other sources, bronze birch borers may kill the tree. [25] The insect bores into the sapwood, beginning at the top of the tree and causing death of the tree crown. [26] The insect has a D-shaped emergence hole where it chews out of ...
Betula pubescens. Betula subg. Betula. Ehrh. Betula pubescens (syn. Betula alba), commonly known as downy birch and also as moor birch, white birch, European white birch or hairy birch, is a species of deciduous tree, native and abundant throughout northern Europe and northern Asia, growing farther north than any other broadleaf tree.
Betula dahurica - Dahurian birch. Betula delavayi - Delavay's birch. Betula raddeana - Radde's birch. Octoploid (8 n = 112). Betula chinensis - Chinese birch. chromosome number not reported. Betula fargesii - Farges's birch. Betula schmidtii - Schmidt's birch. chromosome number unknown.
Betulaceae, the birch family, includes six genera of deciduous nut -bearing trees and shrubs, including the birches, alders, hazels, hornbeams, hazel-hornbeam, and hop-hornbeams numbering a total of 167 species. [2] They are mostly natives of the temperate Northern Hemisphere, with a few species reaching the Southern Hemisphere in the Andes in ...
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