1. Plantain:  oval leaves with a tall stalk sticking out of the middle, grows abundantly at the edge of most  fields (not the tropical fruit).
   
   
2. Horsemint:  long stem with small, pale leaves, grows in wooded areas.  
3. Birch:  brown, somewhat metallic bark that tastes like root-beer and oval leaves with ridges. Usually  grows at high elevations.
4. Sassafras:  three different  types of leaves, the most  distinguishable shape looks like a three fingered claw. Usually grows near trails and roads.    
   
                                      
5. Turkey mustard:  small plant, with small leaves with ridges.  Usually grows in valleys near creeks. Tastes good, just don't confuse with poison ivy!
6. Sourwood: shiny oval leaves.  It's very common. 

        
 *Sourced from:   How to Stay Alive in the Woods and my grandpa.