I just bought it from a nursery. it is grown up. not flowering yet, but nursey man told me that it bears pink small flowers. back of leaves is sort of silver. thanks for any clue.
here it is:
There are many, many types, and the plants usually have these indistinctive oval green leaves. A bloom or berry might be a clue. Also the manner of growth, as some are rather rank shrubs and some vigorous vines.