Pioneer Retigroenx

The pioneer retigroenx replaced its ancestor the retigroenx. Due to island dwarfism it has shrunk to only a fraction of its ancestor's size. It has developed strong roots which it uses to break apart even the most tough soil. Its major success lies in its roots which allow for the growth of the nitrogen fixing microbe called the nixus. It has developed a symbiotic relationship with the nixus by creating nodules for them to grow in and in return the nixus produces a nitrogen compound that helps pioneer retigroenx grow. When pioneer retigroenx dies the fixed nitrogen is released making it available to other island flora and this helps to fertilize the soil. In addition as pioneer retigroenx not only spreads nixus to new biomes but nitritus, nitratus and denitritus, thus completing the nitrogen cycle in barren biomes.