The undergrowth in temperate forests is less. It consists of wide leaves, large wild canopies and non seasonal vegetation.The the trees are deciduous, which shed their leaves during the autumn. The forests have trees, shrubs and bushes mainly.
The undergrowth in tropical rain-forest is very rare because of the poor penetration of sunlight on the forest floor. This is the reason why these forests remain moist always. Almost no plants grow in this area due to this. Due to lack of sunlight, things decay quickly here.