WHAT FLORIDA NATIVE PLANT IS BLOOMING TODAY?: ROSEGENTIAN; ROSE-OF-PLYMOUTH (Sabatia spp. likely stellaris)
FL boasts about 12 species in this genus; colors vary pink to white even on the same plant. Also called marsh pink. Very delicate, the top heavy blooms sway in the slightest breeze. I find these blooming in the margins of the pond.
Native American Ethnobotany: http://herb.umd.umich.edu/herb/search.pl?searchstring=Sabatia