 Monofloral honey made from the nectar of "Nyssa ogeche" has such a high ratio of fructose to glucose that it does not crystallize.The Apalachicola River in the Florida Panhandle is the center for tupelo honey.The honey is produced wherever tupelo trees (three species) bloom in southeastern USA, but the purest and most expensive version (which is certified by pollen analysis) is produced in this valley.