The bottoms of my berries have a dimple in the middle and about 5 or 6 little bumps on the perimeter.In the picture,I couldn't see the bottom of the berry good enough to tell.The leaves look very similiar.It's a nice looking berry,about the size of a blueberry.
The particular variety you have (Nero) could look a little different than the ones in the article, but it's probably in the same family of plants. I assume that since you are on a wine making forum that you are interested in trying to make some wine from them. I say try it! You might experiment with some small one gallon batches to see what works best as far as recipes go.
The description reminds me a bit of a currant as far as it's description of taste, although these berries sound like they might be slightly larger. You might follow a black currant recipe and see how that turns out. Just make sure to check the Specific Gravity with a hydrometer for sugar additions as I bet you will have to add quite a bit.
yep,I'm sure they are in the same family.I planted currants,jostaberries,and elderberries,as well,so I should be able to come up with something out of the mix.