I am new at this location and have not observed this bush in different seasons. Picture 124416 that is attached shows the bushes multiple light colored trunks coming out of the ground; they have small thorns on them. they grow to 15 feet long and the tips bend to the ground and start new root systems. The other pictures show the leaves and pea-sized berries on them. It grows in southern Ohio in a shady area near a creek. I don't wan the kids going there if it is poison sumac.
Not Poison Sumac for certain, and I highly doubt it's Ligustrum owing to the thorns. Perhaps this is two different plants growing close enough to be mistaken for one? In any case a clear closeup of the berries should aid identification as would flower photos.
In the stem picture it looks like there is some of the privet or privet-like shrub coming in from the sides. The thorny branches probably have completely different leaves on the ends.