Finally!!!! After wearing out a set of boots and making a run from the Divination area SW of CW and a couple of trips to Rellekka, I decided to do what I should have done to start with. The CW bush was in the dead trees north of the crystal tree and NW of the observatory.
You can
never
have
too
many snare drums or cymbals. Yes. That's correct. Cymbals, too.