That looks like a huckleberry or wonderberry of the nightshade family.
Basically on potato seed balls they will come up if you plant them, but the seeds won’t be true. Never heard of them crossing with anything however.
I read that Luthor Burbank planted the seed from one of those potato pods - and; got the famous burbank potato.
Tomatos are also related to the deadly nightshade. In factthey were grown as an ornamental plant and thought to be poisonous.