what is the latin and common name of this berry?
Hello, It looks like a red currant, perhaps Ribes triste. You might compare it to some photos and descriptions. Here is one to start: http://nativeplants.evergreen.ca/search/view-plant.php?ID=00990
I hope this is helpful.
I probably should explain, we are at latitude 45.44 North
plant is a vine growing the red berries seen against the maple like leaves. Stems are red. Low to ground, barely see it without the berries which come in singles.
My apologies! You received the answer to someone else's question. I'm still looking into your plant so your patience is appreciated.