ECOLOGICAL COMMUNITY NO. 20 BOTTOMLAND HARDWOODS OCCURRENCE The Bottomland Hardwood ecological community occurs within the floodplain of the river systems of west Florida. Forests of the Apalachicola River are typical of this community. Rather rapid rise and fall in floodwater and little or no inundation during the growing season distinguishes this community from swamp hardwoods. DESCRIPTION The moisture regime is probably the most significant factor in maintaining the bottomland hardwood community. The key to its perpetuation is the seasonal flooding and receding of water while depressional areas within the alluvial flood plain retain some water and support the associated community of swamp forests. Luxurious growth during the summer months and a deciduous forest during the winter season characterize the appearance of this community. 1. Soils The level to nearly level soils are alluvial in nature. Representative soils are Bibb, Mantachie, and Wahee. Appendix A contains information on correlation of soil series with the appropriate ecological community. 2. Vegetation Vegetation is extremely diverse in bottomland hardwoods. Shrubs, vines, grasses, and herbaceous plants grown profusely where sunlight penetrates the canopy. As the forest matures and competition for sunlight increases during the growing season, this community takes on an open, park-like appearance. Plants which characterize this community are: TREES American elm, Ulmus americana; American hornbean, Carpinus caroliniana; Black willow, Salix nigra; Green ash, Fraxinus pennsylvanica; Overcup oak, Quercus lyrata; River birch, Betula nigra; Swamp chestnut oak, Quercus michauxii; Shumard oak, Quercus shumardii; Sweetgum, Liquidambar styraciflua; American sycamore, Platanus americana; Water hickory, Carya aquatica; Water oak, Ouercus nigra; Willow oak, Quercus phellos HERBACEOUS VINES Crossvine, Bignonia capreolata; Greenbriars, Smilax spp.; Peppervine, Ampelopsis arborea; Poison ivy, Toxicodendron radicans; Trumpet creeper, Campsis radicans; Wild grape, Vitis spp.