This is the twig of a Basswood tree
This is the twig of a Boxelder maple tree
This is the twig of a Green ash tree
These three twigs are a good representation of the trees that surround this cite on the bank of Salmon Hole on the Winooski river.
This is a sketch of the anatomy of the Boxelder Maple tree, a tree that is very common around my phenology place. 