Betula glandulosa, the American dwarf birch, also known as resin birch or shrub birch, is a species of birch native to North America.
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. The leaves are nearly circular to oval, 0.5–3 cm (1⁄4–1 1⁄8 in) long and 1–2.5 cm (3⁄8–1 in) broad, with a toothed margin. The fruiting catkins are erect, ...
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* Tota la informació es basa en investigacions científiques publicades