THE HORSECHESTNUT, ASH AND MAPLE 45 



BOX ELDER (Acer negundo) 



Distinguishing characters: The terminal twigs are 

 green, and the buds are round and small. Fig. 36. 

 Leaf: Has three to seven leaflets. 



FIG. 35. Leaf of Norway Maple. 



Form and size: A medium-sized tree with a short 

 trunk and wide-spreading top. 



Range: Eastern United States to the Rocky Moun- 

 tains. 



Soil and location: Grows rapidly in deep, moist soil 

 and river valleys, but accommodates itself to the dry and 

 poor soil conditions of the city. 



