Includes tree, tree stump, root and brunch.
There is also rigged versions of tree, root and stump.
You can open FBX file in any program like Blender, 3D MAX, Maya or game engine like Unity or Unreal and adjust roots, brunch or trunk accordingly to terrain and envelopment objects.
.FBX, and .OBJ files are included.
LOD versions included.
3D Max file (version 2009 minimum) included.