The expression “plain vanilla” strikes me as a bit of a misnomer.
The vanilla bean is the fruit of an orchid, and not just any orchid. Of the hundred or so species of vanilla-producing orchids, only two species produce a vanilla suitable for cooking. One species, vanilla planifolia, produces Bourbon vanilla, while the other species, vanilla tahitensis, produces Tahitian vanilla.
Bourbon vanilla and Tahitian vanilla are as exotic as they sound. That is, the varieties derive their names from their respective locales. Bourbon vanilla is produced from planifolia orchids grown on islands in the Indian Ocean, namely Madagascar, Comoros, and Réunion. Some three hundred years ago, Réunion was named Bourbon Island (Île Bourbon), in honor of the French royal family. Tahitian vanilla is produced from tahitensis orchids in French Polynesia (which includes Tahiti).
The different climates of each locale …






