The attached picture is from a recovering lorapetalum bush in our front yard that is coming back after the Texas Deep Freeze last February. I am fascinated by the leaf on this plant that is half anthocyanin and half chlorophyll. It's almost exactly half and half. Can anyone explain the physiology of why a leaf would convert its metabolism in exactly two halves of the leaf? I would expect this process to be splotchy like the other leaf in the picture and also to take place unevenly.
