On this unseasonably warm December 5 -- it was 70 degrees F. at 7:00 a.m. -- I went for a walk between showers. Sycamore leaves were blowing across my yard, and the drenched cones that had fallen from the tall white pine across the street lay near several that had come to rest atop the general leaf litter in my yard.
Sycamore Leaf with White Pine Cone
Multiple Sycamore Leaves
The leaves of the sycamore tree slightly resemble those of the maple, but they are nearly twice as large, and the shape, when one looks closely, is noticeably different.
For comparison, here is a maple leaf that I photographed on December 3.