This system is found in the Green Swamp and consists of pine flatwoods, live oak hammock and cypress swamp. Pine flatwoods are characterized by longleaf pine, Pinus palustris in Central Florida or slash pine, Pinus elliottii in South Florida, as well as an understory predominantly of saw palmetto, Serenoa repens. The pines are shade intolerant and require fire to maintain the system. Pine flatwoods also have a hardpan 8 to 10 feet below the surface. Flowering plants found in the system are Florida alicia, Chapmannia floridana, blazing star, Liatris spp. and deer-tongue, Carphephorus paniculatus. The live oak hammock forms a canopy and is dominated by live oaks, Quercus virginiana and their epiphytes spanish moss, Tillandsia usneoides, resurrection fern, Pleopeltis polypodioides, butterfly orchid, Encyclia tampensis and the terrestrial plant beggerweed, Desmodium incanum. The cypress swamp consists of the dominant tree bald cypress, Taxodium distichum and broard leaf trees, such as red maple, Acer rubrum and loblolly bay, Gordonia lasianthus.