Have a bunch of these growing wild all over the front acre mixed about with the Pines, Yaupon Hollies, some other very similar shrubs which I believe to be Huckleberries.
I believe them to be some form of blueberry, although they are, obviously, not pruned/fertilized/or mulched (aside from leaf litter) and I cannot recall fruiting of any consequence. I must say though, I haven't really monitored them all that well.
I took a few photos and placed them in an album here:
thanks in advance.
Here is a link that might be useful: photo album