I believe it is called the canopy layer.
canopy
The canopy, because it is the uppermost layer of a forest structure.
The uppermost rain-forest layer made up of very tall trees that emerge from the forest below into the sunlight above
the canopy which is full of trees approximately the same height and it is the thickest layer of the tropical rain forest
they live in trees, branches and the forest floor of the rainforest
tree mouth
If I understand your question correctly the answer is the canopy. That being the 'layer' that tree branches etc. make above tyre forest floor.
The subterranean layer is the layer under ground :)
mainly broad leafed trees that will shed their leaves every year. there are 4 different layers of the temperate forest. the lower level which mainly consists of small plants a fungi. then there is the shrub layer which consists of shrubs and bushes. the next layer is the understory which is where the middle of the trees stretches to where the branches start. the final layer is the canopy which is the top layer and usually stretches to 55 feet but i depends on how old the forest is. now the plants and animals that live in a temperate forest are well adapted to their environment.
This layer is literally just called 'Young Trees' , it's between the 'Canopy Layer' and the 'Shrub Layer'
The natural cover that is created by the branches of tall trees is called a canopy.
The top layer of a forest near the tops of the trees.
The canopy.