Like its relative, the Cherry, the black fruit of this member of the Rose family is edible. One of the French common names is interesting. The translation of Aronie gueule-noire (=black mouth Aronia) suggests that the fruit turn your mouth black when you eat the berries. I do not know from experience if they really do.
Plant fact sheet: https://gobotany.newenglandwild.org/species/aronia/melanocarpa/