354] 



Trees and How to Know Them 



slippery elm is very gummy (though quite tasteless) , and chewing 

 it is fun for children. 



POPLARSINCLUDING THE QUAKING ASPEN 



Of the eleven different members of the poplar group that 

 we find in North America, the quaking aspen (or aspen poplar) 

 carries to the furthest extreme the family characteristic of having 

 foliage that trembles with the breeze. The small broad leaves of 

 this poplar quiver almost incessantly even when the air is calm. 



THE RESTLESS FOLIAGE OF THE QUAKING ASPEN 



The slightest breeze sets in motion the foliage of this poplar. Its dark green leaves, 

 which turn clear gold in autumn, are attached by long ribbon-like stems. Its twigs 

 and bark of blotched white keep many a rabbit alive in winter, and its bitter inner 

 bark is a favorite food of beavers. It is also known as the trembling aspen. 



