I have A. parviflora growing wild in the wooded understory of a floodplain near my home in the NC piedmont, Z8a.
They’re pretty small, but even trees less than 3’ tall in shade seem to make some fruit, which is small, seedy, and not very tasty. I saved the seeds last year and they’re currently stratifying in the fridge.
I grafted some A. triloba on a couple and they took well.