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Birch Leaves and Twigs 



Leaves. 1 Paper birch (B^/uZa a/6a var. ^a^yri/tra). 2 White birch (BrtuZa />opu/tyo/a). 3 Sweet birch (Bc/m/o 

 Unta). 4 Wefltem birch (BetitUi occidenlalis). 5 Alaslca birch {Betula alaskana). 6 Mountain birch {Betula fontinalis) . 

 7 Yellow birch (Betula lutea). 



Twigs. 1 and 2 Paper birch (Betula alba var, Papyrifera). 3 and 4 Sweet birch (Betula lenta). 5 White birch 

 {Betula populifolia). 6 Western birch (Betula occidentalis). 7 and 8 Yellow birch (Betula lutea). 



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