Sawtooth Oak: (Quercus acutissima) 50-70 ft. fast growing. The Sawtooth is an attractive and durable shade tree that can adapt to a wide range of soil conditions. Used for fencing, ornamental tree. The name probably come from its distinctive sawtooth leaves. Produces small acorns a favorite of wild turkeys and other wildlife. The acorns are very bitter, but are eaten by jays and pigeons.