Mystery Bush - Tree

This cropped up a couple years ago.  I do not remember if it came up as a tree or
as a shrub.  I've hacked it back each fall and this last year I got curious.

To date, no one has been able to identify it.


This includes:

Home Depot
Green House Garden Center
My occasional contributer, the Master Gardener from Washington (I even sent her a couple leaves)
Moana Nursery
It kind of reminds me of an oak leaf.  The leaves are quite shiny - almost waxy looking.