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Betula nana, the dwarf birch, [2] is a species of birch in the family Betulaceae, found mainly in the tundra of the Arctic region. Specimen at 1000m. Description.
American dwarf birch is a multi-stemmed shrub typically growing to 1–3 m (3.3–9.8 ft) tall, often forming dense thickets. The trunks are slender, rarely over 5–10 cm (2–4 in) diameter, with smooth, dark brown bark.
Betula pumila (dwarf birch [2] or bog birch [3]) is a deciduous shrub native to North America. Bog birch occurs over a vast area of northern North America, from Yukon in the west to New England in the east and all the way to Washington and Oregon, inhabiting swamps and riparian zones in the boreal forests.
Betula pubescens - White birch, European white birch or downy birch Betula pubescens subsp. tortuosa - Arctic white birch; Pentaploid (5n = 70). Betula kenaica - Kenai birch; Hexaploid (6n = 84). Betula papyrifera - Paper birch, canoe birch or American white birch (sometimes tetraploid or pentaploid)
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 fruticosa, commonly known as dwarf bog birch, [1] (traditional Chinese: 柴樺; simplified Chinese: 柴桦; pinyin: chái huà) is a species of dwarf birch that grows in central and eastern Europe (except for Finland where it grows rare) and Siberia and Mongolia [2] on elevation of 600–1,100 metres (2,000–3,600 ft) in forests, streambanks, and swamps.
Betula neoalaskana (syn. B. resinifera) or Alaska birch, also known as Alaska paper birch or resin birch, is a species of birch native to Alaska and northern Canada.Its range covers most of interior Alaska, and extends from the southern Brooks Range to the Chugach Range in Alaska, including the Turnagain Arm and northern half of the Kenai Peninsula, eastward from Norton Sound through the Yukon ...
Betula michauxii, the Newfoundland dwarf birch, is a species of birch which is native to Newfoundland, Nova Scotia and Quebec [2] as well as Saint Pierre and Miquelon. [1] It is a perennial herb. [ 3 ]