o> 



Lateral -lateral 



Primary 

 lateral- 

 terminal 



-Terminal 



Secondary lateral- 

 terminal 



Internode between 

 branch whorls 



0« CURRENT YEAR 

 I « ONE YEAR OLD 

 2« TWO YEAR OLD 

 3 -THREE YEAR OLD 



Figure 1. Branching terminology and code for denoting annual growth. 



