John K Jordan
Yes, there are zillions of cultivars with big variations. Although I understood even the ornamental cherries were all diffuse porous. If that's correct, a quick inspection of the end grain could at least tell if it's not cherry. Having the leaves in hand is a big bonus if he wants to research a little.
I have a lot of wood around here I'm not sure or don't have a clue about, especially wood given to me. I just turn it or give it to someone else to turn.