Sambucus in both forms shown here is the genus for the flowering plant in the family Adoxaceae. The common name is elderberry. There are many claims made for elderberry and there is some chemistry known about these claims that could substantiate it if there were more conclusive studies. What we can be certain of is the increase in cytokines, the decrease in inflammation and the existence of flavanoids and anthocyanins, all possibly helping with cold, flu and the discomfort of swelling nasal passages. Caution: may have additive effects with diuretics and laxatives.