Hammock species shift from deciduous in northern Florida, to evergreen species in the south. Gainesville's hammocks originally held enormous oaks and magnolias and other hardwoods. The hammock at San Felasco State Park still contains a champion-sized oak. Throughout Florida these forests have been destroyed by logging and development. Xeric habitats don't remain inundated, because rainfall drains rapidly through the porous sand.
Hydric hammocks are moist or wet nearly all the time.
Sandhill soils here are entisols, sandy soils with little or no horizon. These are droughty, coarse sands. They may be golden or tan in color. Sandhill is a type of savanna habitat, with extensive grassland and scattered trees. Frequent fires prevent the buildup of acid-forming litter, so the soil isn't bleached like scrub soil is.