Paw paw is the plural for Paw. If you have two trees, they are paw paw trees. One tree is a paw tree. The old grade school song goes,"Picking up paw paws and puttin' 'em in your pocket". Otherwise it would be , Pickin' up paws and............etc", and that wouldn't sound right now would it? Don't look for paw paws on a punkin' truck, they tend to fall off. Or don't expect to find them on a wagon as they fall off the wagon too. I have found a few paws in the turkey woods in winter where they go cold turkey. Just wanted to clear that up as I know many of you were not confused too. Monty