Birch
Birch is the name of any tree of the genus Betula, in the family Betulaceae, closely related to the beech/oak family, Fagaceae. These are generally small to medium-size trees or shrubs, mostly of northern temperate climates. The simple leaves may be toothed or lobed. The fruit is a small samara, although the wings may be obscure in some species.In times past, commercial oil of wintergreen (methyl salicylate[?]) was made from the sweet birch, Betula lenta.
Birches of eastern North America include:
- Betula allegheniensis -- yellow birch
- Betula glandulosa -- dwarf birch
- Betula lenta -- sweet birch (or black birch)
- Betula michauxii -- Newfoundland dwarf birch
- Betula nigra -- river birch
- Betula papyrifera -- white birch (or paperbark birch)
- Betula populifolia -- gray birch
- Betula pumila -- swamp birch
- Betula pendula -- Silver birch, is native to Europe and parts of Asia.
Above; bark of Siver birch (Betula pendula)
Above; timber of Silver birch (Betula pendula)
See also; Trees of Britain, Trees of the world
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