please help me id this plant
My wife brought me 20 red berries in one bunch, she found growing next to the sidewalk during a walk in suburban Bellingham last fall. She couldn't ID the shrub, but said it was about 8 feet tall and just as wide, and even seemed to be climbing over another shrub. Each individual berry contained 8 or ten tiny seeds that filled up the whole inside. There was very little flesh on the berries. But they were soft. Looked a bit like a large red currant.
i put one berry in each of 8 pots in March. Every one of them germinated, and each berry produced about 8 or 10 plants. Now i have 8 plants growing in 8 pots. The first leaves were heart-shaped and shiny green. I considered that it might be some species of Schisandra. Now some of the newer leaves are very uniquely shaped. I wish there was an easy way for me to add an image here, but I'll guess I'll have to try to describe a leaf. four inches long. Almost heart-shaped. But just where the bottom should start to curl inward, instead two arrow shaped horizontal projectiles jut out about 2 inches from the center. Each of these "projectiles" has another projectile about halfway along its length. I can imagine that, as the plant grows more, these leaves will start to separate into leaflets, but maybe not. I thought it might be some solanum, but couldn't find anything in this climate that looked remotely like what i have here. The leaves look very vaguely grape-like, but the fruit was berries full of seeds, and not much like a grape. And the leaves are quite shiny green, not at all rough like a grape. Or maybe some species of deciduous Viburnum? Any help is much appreciated.