National Forests in Florida Final Report
Temperate Florida Popash Swamp
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- Southeastern Coastal Plain Green Ash - Elm Bottomland Forest
Temperate Florida Popash SwampElement Identifiers NVCS association: Fraxinus caroliniana - Sabal palmetto - Ulmus americana / Cephalanthus occidentalis Forest Database Code: CEGL008592 Formation: Seasonally flooded cold-deciduous forest Alliance: FRAXINUS CAROLINIANA SEASONALLY FLOODED FOREST ALLIANCE (I.B.2.N.e.102) Element Concept Summary: This is a long-hydroperiod, seasonally flooded, floodplain forest found in the vicinity of the St. John's River in Florida. The canopy of stands is fairly diverse, but plant species diversity is correspondingly lower than in sites of shorter hydroperiod. Fraxinus caroliniana is the dominant tree, followed by Sabal palmetto, Ulmus americana, and Acer rubrum. In addition, Taxodium distichum and Persea palustris occur in some stands of this type. Subcanopy species include Ilex cassine, Gleditsia aquatica, Cornus foemina (= Cornus stricta), and Liquidambar styraciflua. The shrub layer is typically dominated by Cephalanthus occidentalis. Herbs may include Polygonum spp., Pontederia cordata, Thelypteris kunthii, Boehmeria cylindrica, Carex alata, Carex lupulina, Panicum rigidulum, Phanopyrum gymnocarpon (= Panicum gymnocarpon), Galium sp., Hypoxis curtissii (= Hypoxis leptocarpa), and Ludwigia repens. Floating-leaved aquatics may be present in some stands. Environment: Sites in which this association is found are in close proximity to the St. John's River in the Ocala National Forest of Florida. Standing water is frequently present in these sites, and plant species diversity is correspondingly lower than in sites of shorter hydroperiod. The hydrology is interpreted as long-hydroperiod seasonally flooded. Vegetation: The canopy of stands is fairly diverse. Fraxinus caroliniana is the dominant tree, followed by Sabal palmetto, Ulmus americana, and Acer rubrum. In addition, Taxodium distichum and Persea palustris occur in some stands of this type. The subcanopy is typically dominated by Cephalanthus occidentalis. Some other woody taxa in stands of this type may include Morella cerifera, Itea virginica, Diospyros virginiana, Ulmus americana, and Toxicodendron radicans. Herbs may include Polygonum spp., Pontederia cordata, Thelypteris kunthii, Boehmeria cylindrica, Carex alata, Carex lupulina, Panicum rigidulum, Phanopyrum gymnocarpon (= Panicum gymnocarpon), Galium sp., Hypoxis curtissii (= Hypoxis leptocarpa), and Ludwigia repens. Floating-leaved aquatics, which may be present in some stands, include Salvinia minima, Limnobium spongia, and Lemna minor. Dynamics: This association is frequently inundated. Standing water is frequently present in these sites, and plant species diversity is correspondingly lower than in sites of shorter hydroperiod. Similar Associations: Fraxinus caroliniana / Crinum americanum - Bacopa caroliniana Forest (CEGL004478)--of tropical Florida. Synonymy: Floodplain Swamp, Pop Ash Slough subtype (FNAI 1992b). in part St. Johns River Swamps (Heuberger et al. 1997). part of LTA 6 Comments: In the "Ecological Inventory of the Ocala National Forest" (Heuberger et al. 1997), this vegetation type is a component of LTA 6, the "St. John's River Lowlands." Conservation Ranking & Rare Species GRank: G3? (02-05-20): High-ranked species: No information Element Distribution Range: This type is described from the peninsula of Florida, and could range north into the panhandle. Its full range is not known. States: FL Crosswalk to State Classifications: FL: Floodplain Swamp, in part (FL 1992) TNC Ecoregions: 53:?, 55:C USFS Ecoregions: 232Bf:CCC Federal Lands: USFS (Ocala) Element Sources References: FNAI 1992a, FNAI 1992b, Heuberger et al. 1997 Bottomland Hardwood Forests Southeastern Coastal Plain Green Ash - Elm Bottomland ForestElement Identifiers NVCS association: Fraxinus pennsylvanica - Ulmus americana / Carpinus caroliniana / Boehmeria cylindrica Forest Database Code: CEGL007806 Formation: Temporarily flooded cold-deciduous forest Alliance: FRAXINUS PENNSYLVANICA - ULMUS AMERICANA - CELTIS (OCCIDENTALIS, LAEVIGATA) TEMPORARILY FLOODED FOREST ALLIANCE (I.B.2.N.d.11) Element Concept Summary: This community occurs in floodplains of major rivers in the Atlantic Coastal Plain, generally alluvial or brownwater rivers, on low ridges, flats, and sloughs of first bottoms; terrace flats and sloughs; and on well-drained, relatively fertile levees and backsides of levees. This community typically has an uneven-aged canopy dominated by Fraxinus pennsylvanica, Ulmus americana, and Celtis laevigata. Other typical canopy species include Acer negundo, Liquidambar styraciflua, Acer rubrum, Acer saccharinum, Morus rubra, Platanus occidentalis, Ulmus alata, and others. The understory stratum includes Carpinus caroliniana, Cornus foemina, Ilex decidua, Morus rubra, and Crataegus spp. The herbaceous and vine strata are sparse to abundant. Composition may vary somewhat with flooding regime and geographic location. Common species are Boehmeria cylindrica, Carex lupulina, Carex retroflexa, Carex grayi, Carex abscondita, Pilea pumila, Carex louisianica, Arisaema dracontium, Saururus cernuus, Matelea carolinensis, Leersia lenticularis, Chasmanthium latifolium, Justicia ovata, Carex intumescens, and others. Common vine species in this community are Vitis rotundifolia, Campsis radicans, Parthenocissus quinquefolia, Toxicodendron radicans, Bignonia capreolata, Cocculus carolinus, and others. Soils are clay or silt loams with alluvial deposition. Environment: This community occurs in floodplains of major rivers in the Atlantic Coastal Plain, generally alluvial or brownwater rivers, on low ridges, flats, and sloughs of first bottoms; terrace flats and sloughs; and on well-drained, relatively fertile levees and backsides of levees. Soils are clay or silt loams with alluvial deposition. Some stands assigned here from Fort Benning, Georgia, are from a creek tributary of the Chattahoochee River. Some stands assigned here from Fort Benning, Georgia, are from a creek tributary of the Chattahoochee River. Vegetation: This community typically has an uneven-aged canopy dominated by Fraxinus pennsylvanica, Ulmus americana, and Celtis laevigata. Other typical canopy species include Acer negundo, Liquidambar styraciflua, Acer rubrum, Acer saccharinum, Morus rubra, Platanus occidentalis, Ulmus alata, and others. The understory stratum includes Carpinus caroliniana, Cornus foemina, Ilex decidua, Morus rubra, and Crataegus spp. The herbaceous and vine strata are sparse to abundant. Composition may vary somewhat with flooding regime and geographic location. Common species are Boehmeria cylindrica, Carex lupulina, Carex retroflexa, Carex grayi, Carex abscondita, Pilea pumila, Carex louisianica, Arisaema dracontium, Saururus cernuus, Matelea carolinensis, Leersia lenticularis, Chasmanthium latifolium, Justicia ovata, Carex intumescens, and others. Common vine species in this community are Vitis rotundifolia, Campsis radicans, Parthenocissus quinquefolia, Toxicodendron radicans, Bignonia capreolata, Cocculus carolinus, and others. Some earlier successional stands may contain Betula nigra. Dynamics: See Summary Similar Associations: No information Synonymy: IIA6d. Sugarberry - American Elm - Green Ash Bottomland Forest (Allard 1990) B. in part Fraxinus pennsylvanica - Ulmus americana - Celtis laevigata / Ilex decidua Forest (Rice and Peet 1997) Celtis laevigata - Liquidambar styraciflua - Quercus laurifolia / Carpinus caroliniana / Arundinaria gigantea / Carex lupulina Forest (CEGL007736), "Green Ash Phase" (TNC 1998?b) Comments: This association was originally described based on data from the Roanoke River of North Carolina (Rice and Peet 1997). The global distribution of this community needs to be further evaluated, particularly in relation to data from Congaree Swamp National Monument. The name used for this type in Rice and Peet (1997) is the name of the national type Fraxinus pennsylvanica - Ulmus americana - Celtis laevigata / Ilex decidua Forest (CEGL002427) from which this type was split (this was after the Rice and Peet report was issued). Compare Fort Benning data to Roanoke River data; some stands at Fort Benning contain Betula nigra, this probably successional. Conservation Ranking & Rare Species GRank: G4? (01-01-04): This is not an inherently rare community, although good mature examples of large size are rare. It is at least moderately widespread, and it is presumed to be relatively common throughout its range, although its full range is not known. It occurs in a variety of bottomland habitats. It is poorly documented through EOs, and not much data are available on the specific condition of examples of this type. Some stands have been impacted by removal of more valuable timber species and loss of herbaceous species diversity from the disturbance effects of logging. High-ranked species: No information Element Distribution Range: This type is found throughout the Atlantic and East Gulf coastal plains from Maryland and Virginia south to Georgia and possibly to Florida and Alabama. States: AL? FL? GA MD NC SC VA? Crosswalk to State Classifications: NC: Coastal Plain Bottomland Hardwoods, Brownwater Subtype, in part (NC 1990) VA?: No equivalent (VA 2001) TNC Ecoregions: 53:C, 56:P, 57:C USFS Ecoregions: 221D:CC, 231Ba:CPP, 232Bq:CC?, 232Bs:CCC, 232Cb:CCC Federal Lands: DOD (Fort Benning); NPS (Congaree Swamp); USFS (Apalachicola?, Oconee?, Tombigbee?, Tuskegee?) Element Sources References: Allard 1990, NatureServe Ecology - Southeast U.S. unpubl. data, Rice and Peet 1997, Schafale and Weakley 1990, TNC 1998?b Bottomland Hardwood Forests Directory: library library -> Strategic Plan South Sudan Country Office Context library -> The World Order of Bahá’u’lláh Selected Letters library -> Ieee/iee electronic Library (iel) library -> [0] B. Hardware [2] library -> [1] B. Hardware [1] library -> Florida public service commission library -> 1 1 before the florida public service commission 2 docket no. 070650-ei 3 In the Matter of: 4 petition to determine need for turkey point nuclear units 6 and 7 electrical 5 power plant, by florida power & light company library -> Archived Online Exhibit Download 3.16 Mb. Share with your friends:
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