Also called American Plane Tree, Eastern Sycamore or Buttonwood, this large deciduous tree is native to North America. The trees have distinctive exfoliating bark that flakes off in large, irregular pieces, which leaves a multi-colored, mottled surface of greenish-white, gray, and brown. The rigidity of the bark tissue, which cannot stretch to accommodate the growth of the wood, is the reason for the appearance of this particular bark.