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| | | | AlderGenus AlnusBetulaceae : Birch FamilyWorldwide there are about 30 species of alders. Of the 8 species recognized in North America, 6 are native to Canada.Appearance: smooth, with patterned enlarging lenticels: becoming rough with age. Inner bark Tinged red.Texture: light, soft, moderately strong, reddish-brown. Diffuse-porous.Height & Forms: mostly small trees or shrubs.Habitat: most species occur on wet sites and are intolerant to shade. Early growth is rapid.Note: buds, twigs, bark, pollen catkins and fruits of alders are eaten by birds and mammals. | | |
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