I get scads of J.m. seedlings in my coastal Maryland garden. These are mostly found near a huge 'Bloodgood' type JM planted in the 1960s. I let this one grow because it has a beautiful, prolonged bright-coral fall color, almost fluorescent seeming. (it is green most of the year) It also grew exceptionally fast. I have a 'Mai kujaku' aka 'Aconitifolium'. Does this look like a hybrid to the experts here? I guess the flowers would help, can post those in the spring.