The branches of tall trees forming a roof-like structure over the other plants in a forest are called a [[1]].

The branches of tall trees forming a roof-like structure over the other plants in a forest are called a canopy.

Canopies contain the outermost layer of leaves formed by an individual tree or by a group of trees thus, restricting the sunlight and rain from getting into the layers that are below the canopy. They provide shelter to several organisms.