It comes from a self grown I found hiding under my big Magnolia...same area that a few other little trees that I have grown for a while with I'm now thinking are another species altogether.. If so then I'd be more impressed with my project than I am now.
As a side note the trees remained green over Winter but that said I know some juvenile types remain 'evergreen' and become deciduous as they mature.
A huge deciduous specimen is in my neighbors yard and was googling that when a light was turned on.

Steve.