White oaks are a funny thing. There's so much variation in them. Just when I think I have them figured out, I get thrown for a loop.
I have 1/2 dozen "whites" that are about 9-10' tall and were all planted at the same time. Most look like what "whites" should look like, but one looks more like a bur and another is this one pictured. It's got longer, skinny leaves than the others. I wonder if it's got some chestnut oak in it (sauls)?