In many areas, including North America and the United Kingdom, pumpkin traditionally refers to only certain round, orange varieties of winter squash, predominantly derived from Cucurbita pepo, while in Australian English, pumpkin can refer to winter squash of any appearance.
Energy drinks contain very high levels of caffeine. A single 5-hour Energy shot contains almost as much caffeine as four 12-oz. cans of Mountain Dew. While many people will tell you that Mountain Dew has the most caffeine of any soft drink, that is incorrect. A 12-ounce (355 ml) can of Mountain Dew has about 55 mg of caffeine, compared to 72 mg in the same amount of Jolt Cola, 69 mg for Pepsi MAX, 63 to 69 mg for Sun Drop, or 59 mg for Sugar-free Mr. Pibb.
Thus, root tea, became root beer, the soft alternative to regular beer. Barqs has 22mg per 12 ounce can. Fountain dispensed Barqs does not have any caffeine in it, however, nor does the diet version of Barqs. Nobody knows why Barqs started adding caffeine to their soft drink. More than likely it was in an effort to market their version as different from the popular Hires version during the early 20th century.