Pacific Madrone Burl (Arbutus menziesii). This was in my Father's shop and when he passed in 2008, it came to my shop shortly thereafter and I have been moving it around my shop to different places. Only because it was from my Dad's shop kept me from throwing it away.
Yesterday I decided to turn the burl, my only regret is I did not take a picture before I started. The bowl is 13" in diameter and 3.5" deep. The wood has been kicked around a shop for at least 20 yrs. and is very dry, cracked and badly checked. There was even termite channels in the wood. This has turned out to be a very usual piece, I am very glad I did not make firewood out of it.