This is an unregistered sport of Hosta Niagra Falls documented by Walters Gardens of Zeeland, Michigan. It is Plant Patent #PP28785. The edge is a wide, dark green and the leaf interior is white and pale green. The nicely piecrusted leaves are about 12″ long by 7″ wide on plants that exceed  24″ X 38″, high and wide as they mature. The scapes are about 22″-24″ tall with the bloom period commencing the end of July here in Vermont.  The picture we are using is provided by our wholesaler, Walters Gardens of Zeeland Michigan.