First post on this site and joined specifically to ask this question so hope someone can help! We're first time home buyers and have a small patio garden in Brooklyn. The previous owners did not have much planted by there, but they did leave a beautiful Oak Leaf Hydrangea and a Japanese Maple.
The maple was in a container when we first moved in, but we transplanted it to the garden in early April. I'm struggling to identify it because it seems to have two distinct types of leaves on it. Some leaves are small, densely populated, and pale green. These look like the leaves on the "Butterfly" variety. Others, are a much deeper green, and much larger. These larger leaves are found both towards the base of the tree and the top of the tree.
In early April, the early-leaves were red-tinged but have since turned green.
I've included two close ups of the leaves and a photo of the tree in the garden with the four main clusters of leaves circled.