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The leaves are 2.5 to 3 inches (5 to 7 cm) in length, alternate, simple, pinnately-veined, and taper to an elongated tip. They are dark green and glabrous above and paler below, with doubly serrate margins. [5] [6] Like other members of the Betula genus, leaves turn yellow in autumn. Betula populifolia bark, with its signature black chevron ...
Birch leaves A birch-curtain in November in Ystad. Lying trunk of a birch (Betula) in total decomposition. Birches native to Eurasia include. Betula albosinensis – Chinese red birch (northern + central China) Betula alnoides – alder-leaf birch (China, Himalayas, northern Indochina) Betula ashburneri – (Bhutan, Tibet, Sichuan, Yunnan ...
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 platyphylla (Betula pendula var. platyphylla) - Siberian silver birch; Betula populifolia - Gray birch; Betula szechuanica (Betula pendula var. szechuanica) - Sichuan birch; Tetraploid (4n = 56). Betula celtiberica - Iberian white birch; Betula pubescens - White birch, European white birch or downy birch Betula pubescens subsp. tortuosa ...
The leaves of this species serve as food for some caterpillars and the solitary leaf-cutter bee Megachile rubi cuts pieces from the leaves to line the cells of its nest. [ 5 ] Deer do not tend to browse young B. lenta allowing trees to grow in areas with high deer populations, Betula alleghaniensis , a close relative of B. lenta, is, however ...
Their typical flowers are catkins and often appear before leaves. In the past, the family was often divided into two families, Betulaceae ( Alnus , Betula ) and Corylaceae (the rest). Recent treatments, including the Angiosperm Phylogeny Group , have described these two groups as subfamilies within an expanded Betulaceae: Betuloideae and ...
Betula papyrifera (paper birch, [5] also known as (American) white birch [5] and canoe birch [5]) is a short-lived species of birch native to northern North America. Paper birch is named after the tree's thin white bark, which often peels in paper -like layers from the trunk.
Betula nigra, the black birch, river birch or water birch, is a species of birch native to the Eastern United States from New Hampshire west to southern Minnesota, and south to northern Florida and west to Texas. It is one of the few heat-tolerant birches in a family of mostly cold-weather trees which do not thrive in USDA Zone 6 and up.