The leaves of Platanus acerifolia are simple, triangular, 9 to 15 cm long, 9 to 17 cm wide, with 3 to 5-lobed palmar divisions, irregular sharp teeth and undulate teeth on the edge of the leaves, truncated or nearly heart-shaped at the base.
The leaves of sycamore are large, broadly ovate or slightly cuneiform, with lobes, which are broadly triangular, with several thick serrations on the edges, and the petioles are 3 to 10 cm long.
The flower is about 4 mm long and has 4 petals.
Parasol panicle, about 20 cm long, with short villi, flowers unisexual, without petals, calyx tube about 2 mm long, with 5 lobes, in the shape of a strip lanceolate, growing about 10 mm.