TREE Factory XP is a set of very dense and detailed vegetation DSF overlays covering the Center part of France (see chart provided for more information about coverage).
TFXP sceneries are designed for use with photographic scenes such as those generated by Ortho4XP but can also be used with the default X-Plane landscape.
Each scenery is sub-divided into two sub-sceneries in order to allow the least powerful configurations to activate only the most important part of the vegetation.
The "_Std" scenery contains the most significant vegetation zones, approximately 2/3 of the full coverage, while the "_Ext" scenery contains the small hedges and thickets.
Only the "_Ext" scenery can be disabled by deleting it from the Custom Scenery directory.