The Pine Flatwoods habitat covers over 50% of Florida natural ecosystem area.
The most common pine is Slash Pine or Pinus elliottii.
Here are links: http://www.sfrc.ufl.edu/extension/florida_forestry_information/forest_resources/pine_flatwoods.html
Here are pines with Sabal Palm/Sabal palmetto.
and native grasses, in this case, Saw Grass or Cladium jamaicense.
Flatwood environments are heavily dependant on regeneration through fire - the plants are adapted to common wildfires and do not thrive without it.