Bourbon (which has no relation to the alcoholic beverage) is named after the island it originated on: Bourbon Island, now Reunion Island. In 1708, the French planted coffee that they had received from the Dutch on this island, and it mutated into a unique varietal. Since then, many other varietals have come from Bourbon, and it’s made its way to South and Central America. Bourbon plants produce sweet, acidic beans that also make excellent coffee.
This is what we call a “rare” variety as the fruit on the tree never goes red but instead pink. This rare condition creates an intense and delicate acidity, sometimes with notes of apple or papaya.