Here is a picture of the plant. It's hard to see, but it does have 3 prongs all from the same point on the stem. It definitely has 5 sets of leaves with 3 large, and 2 smaller, just like ginseng. The stem feels soft, not woody. But the leaf edge and leaf shape isn't quite right. And the stem that extends up to the berry pod isn't the same either. Also, this plant is about 6 inches high off the ground, so it's very small. This is right in the middle of where I planted about 100 seeds 3 years ago. None of the seeds came up. But this is the first I remember seeing a plant like this in the woods. I looked all around the area today, and I couldn't find any other plants that looked like it.
Until I know more, I'm naming this one Fool's Ginseng