Most of the shrubs and trees are relatively short-lived. This may also be a successional stage on previously-disturbed land. Shrubland may be found in arid and semi-arid areas in warm to temperate zones. Shrubland may also be found as a successional stage back to forest on previously-disturbed land. Shrubland is characterized by low, woody plants called shrubs, which often grow in dense thickets.
Some types require fire.
These plants usually have deeper roots sooner than grasses or trees. Deserts are areas where evaporation exceeds rainfall. Not all deserts are warm, and it is possible to have a cold desert. Some deserts may supply sufficient water for life. Due to the low humidity and water level, there typically are wide daily temperature fluctuations.