Harlequin satisfies those looking for a sativa-dominant strain that provides clear-headed, alert sativa effects with just enough THC to keep it interesting. It boasts a CBD:THC ratio of 5:2. Harlequin is a descendant of Colombian Gold, a Nepali indica, Thai and Swiss landrace strains. It has an earthy sweetness with the flavor of mango. Harlequin is one of the most sought after strains on the market because of its high CBD content.