Most limestone Vegatation is the habitat of a number of species, Endemic species, and Native species.
Because there are many types of microhabitats for plants, some researchers believe that this occurance seem like the selective force easy to evolve to new species.
Adaptation of limestone plants is important to help them surviving on limestone substrate and drought.
Most limestone plants have adapt some physiological stuctures or morphological characteristics, for example, swollen stems, dimorphic roots to increase their growth rates.