This is the 2200th most frequent Chinese word.
枝
"Branch" or "twig."
Here, '枝' is used as a classifier for a long, thin object such as a pencil.
这枝铅笔是我的。
This pencil is mine.
In this case, '枝' is used as a classifier for a branch of a tree or a small stem with a flower.
树上长了一枝花。
A flower has grown on the tree.
Here, '枝' serves as a classifier for one stalk of rose.