Question

what is under storey in a forest​

Answer 1

This is the layer of trees and shrubs that grows beneath the forest canopy but above the forest floor. ... In those low-light conditions, plants in the understory may be stunted and short. Saplings can also be found in the understory.

Answer 2

the vegetative layer and especially the trees and shrubs between the forest canopy and the ground coverthe plants that form the under storey