原生植物
Due to the moderating influence of surrounding water bodies, the climate on the barrier island supports tropical species of plants normally found far to the south. Brevard County's barrier island to, approximately, Cape Canaveral, constitutes the northernmost limit of the range of many of these plant species. At the same time, the infrequency and mildness of freezes in the Central Florida region serves to define the southern limit of many plants found in temperate zones. Vegetated sand dunes are found along most of the beach's length and provide the major defense against storm events. Native plant species found on the dunes include sea oats, Sabal palmetto, sea grape, railroad vine, dollar weed, coral bean, Spanish bayonet, wax myrtle, yaupon holly, and several grass species. More salt-tolerant and wind-tolerant species, such as sea oats and railroad vine, are found predominantly on the ocean side of the dune, while other dune vegetation species do not generally show such zonation. These plants assist in building the dune by trapping windblown sand and in stabilizing the dune with extensive lateral root systems.