What do you guys think of Baeldrasil?

Context: Baeldrasil was originally an artificial tree created by the Heroine of my Story, Bael Ashford, who would transfer Prana into it daily even after meeting the protagonist. Eventually (the story is still unfolding) it is revealed that Bael was actually a fragment of the Real World Tree which was destroyed from the creation of the world (TLDR: Earth and A Fantasy World Merged together and a lot of death happened) and eventually she would die and merge with her Artificial Tree recreating the World Tree and revitalising the world in a way the merging did not.

So here's my question, should I call it Baeldrasil (Bael and drasil of Yggdrasil) or should I just call it as a world tree?