Cross section of Alilanthus wood. Growth rings are quite obvious. Holes are sampling locations where wood was
drilled out for chemical analysis. Section is about 8 cm across. Holes are made with a 5/8 inch drill. Bark has been removed.

Bark of the main trunk of Ailanthus.  Scale is about 10 cm across.

 
 

Twig of Alilanthus. Twig dimameter is about 1.5 cm.