It was brought up in another thread that Ayana leaves cannot be foraged on Teras.
With GM Wakefield's help, there are now four areas that Ayana leaf can be foraged on the Rock.

Stormbrow, Abandoned Mine Dock
Ghorsa Isle, Under The Bridge
Ghorsa Isle, Plaza Southeast

Those should all now be locations where Ayana leaves can be foraged.
In addition to those, Ayana leaves also grow in the backyard of Welkin Hall.

-KEIOS

Keios is pretty amazing. ~Wyrom

Thank you!