Solanum triflorum

Solanum triflorum is a species of nightshade, in the family Solanaceae, also known as cutleaf nightshade and small nightshade. Like many nightshades, S. triflorum is native to South America, specifically to Argentina; it has made its way onto other continents, including Europe and Australia, as an introduced species, where it is deemed a weed, at times. It is also typically considered native to much of the Eastern and Western parts of the United states and parts of Canada, although there is some debate on the matter....read more on Wikipedia.