There are many, many leaf patterns out there but none that quite looked squat enough for an aspen leaf, so I created my own pattern. Here is the Pando Aspen Leaf:
I have a vision in my head of all these leaves scattered on the ground as if an aspen tree has just shed them in October. A blanket or shawl, but that is a lot of leaves. Maybe a scarf first to see if it looks ok.