Limes – C. aurantifolia

Although limes may not be what you would choose for an afternoon snack, we consider them as powerhouses when we want to bring out the flavor of other foods. Limes are oval or round in shape having a diameter of one to two inches with green flesh and skin. They can be either sour or sweet depending on the variety; Sour limes contain citric acid giving them an acidic and tart taste, while sweet limes lack citric acid and are sweeter in flavor.

https://www.cbi.eu/market-information/fresh-fruit-vegetables/limes