	Platanus" × "acerifolia, the London plane, London planetree, or hybrid plane, is a tree in the genus "Platanus". It is often known by the synonym Platanus" × "hispanica. It is usually thought to be a hybrid of "Platanus orientalis" (oriental plane) and "Platanus occidentalis" (American sycamore). Some authorities think that it may be a cultivar of "P. orientalis".