WHAT FLORIDA NATIVE PLANT IS BLOOMING TODAY?: GIANT IRONWEED (Vernonia gigantea)
This beauty can grow to 6ft, so plan for a back location in the garden. Loved by pollinators.
Photo depicts buds (and a gray hairstreak butterfly)
Native American Ethnobotany for this genus: http://herb.umd.umich.edu/herb/search.pl?searchstring=Vernonia
Full bloom from June 2012: