For example , Azorella macquariensis is the only cushion - forming plant that occurs on Macquarie Island .
Azorella macquariensis plays a vital role in the ecosystem as Azorella macquariensis makes up the major structural component of feldmark vegetation on the island ( Threatened Species Section , 2012 ) .
For example , Azorella macquariensis is the only cushion - forming plant that occurs on Macquarie Island and it plays a vital role in the ecosystem as it makes up the major structural component of feldmark vegetation on the island ( Threatened Species Section , 2012 ) .