Witherbark Skull

Source
This item drops from:
 * Witherbark Caller in The Hinterlands
 * Witherbark Sadist in The Hinterlands
 * Witherbark Scalper in The Hinterlands
 * Witch Doctor Mai'jin in The Hinterlands
 * Witherbark Venomblood in The Hinterlands
 * Witherbark Zealot in The Hinterlands
 * Witherbark Hideskinner in The Hinterlands

Witherbark Skull as a quest objective
This item is an objective of.

Witherbark Skull as an ingredient
This item is used to make: