Fern
A forest is a highly complex, constantly changing environment made up of a variety of living (wildlife, trees, shrubs, wildflowers, ferns, mosses, lichens, fungi and microscopic soil organisms) and non-living (water, nutrients, rocks, sunlight and air) things. Trees are the dominant component of this complex community.
Rain Forest in Borneo. (Malaysia)
There are many different kinds of forests around the world—tropical rain forests, temperate rain forests (or old-growth forests), boreal forests, mangrove forests, Carolinian forests, to name but a few.