Burl is a character in Crashlands. He is a Tendraam who has a house in the Savanna, but is never seen there. The reason for this is after you complete a quest to rid his home of wompits, Hewgodooko kills him in Powapol, which was where he was living at the time.
You are asked to bear his root to Grandmammy. This results in Grandmammy swearing to avenge Burl, and she reassembles The Fifth Arm of Woanope.