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Betula populifolia bark, with its signature black chevron patches. The flowers are wind-pollinated catkins 2 to 3 inches (5 to 8 cm) long, the male catkins pendulous and the female catkins erect. The fruit , maturing in autumn, is composed of many tiny winged seeds packed between the catkin bracts.
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 ...
A birch is a thin-leaved deciduous hardwood tree of the genus Betula (/ ˈ b ɛ tj ʊ l ə /), [2] in the family Betulaceae, which also includes alders, hazels, and hornbeams.It is closely related to the beech-oak family Fagaceae.
Betula lenta L. - Sweet or Black Birch [Wo] Betula nigra L. - River Birch [We, Wo] Betula populifolia Marshall - Gray Birch [Wo] Carpinus caroliniana Walter - American Hornbeam [Wo] Corylus americana Marsh. - American Hazelnut [Wo] Caprifoliaceae - (Honeysuckle Family) Lonicera × bella Zabel - Hybrid Honeysuckle [M] Lonicera japonica Thunb ...
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 papyrifera: paper birch; canoe birch; American white birch 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 ...
The Betulaceae are believed to have originated at the end of the Cretaceous period (about 70 million years ago) in central China.This region at the time would have had a Mediterranean climate due to the proximity of the Tethys Sea, which covered parts of present-day Tibet and Xinjiang into the early Tertiary period.
A list of tree species, grouped generally by biogeographic realm and specifically by bioregions, and shade tolerance. Shade-tolerant species are species that are able to thrive in the shade, and in the presence of natural competition by other plants.