The following features will be discovered and the problems suggested will be solved:
The brown or greenish-brown bark.
The buds.
One bud (sometimes two) is at the end of the twig.
Some buds are along the side of the twig.
What caused the end bud to grow larger than the others?
There is a leaf scar under each bud.
Of what use is it to the bud to be between the twig and the leaf stalk?
The bands of rings, one or more on each twig.
The tiny oval pores, each surrounded by a little raised band.