After the enthusiastic response to the last time I posed arboreally inclined questions here, I am inclined to crowdsource answers again. (Last time it was an immature Sitka Spruce, or Picea sitchensis.)
Can anyone name this tree? It was growing near Pemberton but by no means is it native. I have an idea what it might be. It is a tricky one. And the only clue is a leaf.