Ray is correct, it's not Yellow petra, with that shaped leaf. And if it does have the redish coloring on the underside, it's probably Maximum. Scott's photo looks like a dead ringer for Yellow Petra.
So for sure its not a Maximum as there is no rose colored undersides
Its not a yellow Petra...
It however does have a somewhat pinkish petiole but does not look like Moose's John Bender
So what do you guys think????