G'Hanir

G'Hanir was the Mother Tree of Azeroth, and the domain of the demigoddess Aviana. It was known as the tallest tree atop the tallest peak which bore fruits that contained the seeds to all Azerothian trees. While not apart of the mortal world, its ties to the world were similar to that of the Emerald Dream, and functioned as the place where all winged creatures went upon their deaths.

G'Hanir presumably died alongside Aviana during the War of the Ancients. However, the Life-Binder Alexstraza possessed an acorn from the Mother Tree that was used to grow the world tree Nordrassil.

Presently, in light of the invasion of the Burning Legion, an Azerothian Hero has taken up a single branch of the revered tree, and functions as its guardian.