Thanks everyone. It's some species of red oak. The guy planted it 55 years ago. I was shocked when he brought that piece over. But then I saw that some of the growth rings were over 1/2" wide. Still unfinished. 17 of the bowls just came out of the drying kiln, the rest are in there now. I use an old upright freezer with a fan and light bulb in it for drying. The pieces that the client buys will be finished in natural. The others will be a variety of finishes. Some sand blasted, some dyed then pores filled with colored wax, and some filled with acrylic paint the sanded back. The paint stays in the pores, and the rest goes back to natural. Going to have days and days of sanding. It's taken just over a month to get to this point. Lost track of how many garbage cans of chips have been hauled out!