I searched for images of the tree in google http://www.tamenobu.com/images/berrytree.JPG but the poster didn’t know what the tree was either.
I have several of these outside my office window and the robins that feeding off of them this morning are crashing into my window because of the reflections of the trees in the mirrored glass. One actually just broke his neck and is laying outside. Boy is fat from eating berries. What are these things? They seem to be driving the birds nuts.