Print Report

CEGL008487 Quercus shumardii - Quercus michauxii - Quercus nigra / Acer floridanum - Tilia americana var. heterophylla Swamp Forest

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Shumard Oak - Swamp Chestnut Oak - Water Oak / Southern Sugar Maple - Appalachian Basswood Swamp Forest

Colloquial Name: Southern Interior Oak Bottomland Forest

Hierarchy Level:  Association

Type Concept: This association covers bottomland forests of the southern Piedmont of Georgia and South Carolina, the Piedmont-Ridge and Valley transition region of Alabama, the adjacent Upper East Gulf Coastal Plain of Georgia, and the Southern Ridge and Valley of Georgia and Tennessee. Stands occur in broad flat floodplains of medium-sized rivers, or as smaller occurrences along creeks and their adjacent floodplains. The diverse canopy is primarily composed of bottomland terrace species, but may also contain some levee species which would normally sort out better along a hydrologic gradient in the larger floodplains of the Coastal Plain. The canopy of stands is typically dominated by Quercus shumardii and Quercus michauxii with Liquidambar styraciflua and Quercus nigra. This type is found either in the outer edges of the Piedmont, in the transition area to the Ridge and Valley, or just barely coastward of the Fall-line, so Quercus pagoda is either not present at all, or if present it is at very low frequency. Other canopy and/or subcanopy species may include Acer floridanum, Liriodendron tulipifera, Tilia americana var. heterophylla, Carya cordiformis (which may have high cover), Carya carolinae-septentrionalis, Juglans nigra, Quercus phellos, and Pinus taeda. Occasionally, Celtis laevigata, Platanus occidentalis or Betula nigra may be present at low values, but they are not characteristic and may signal the start of a different bottomland community type when noted in large quantities. The rare tree Quercus oglethorpensis may be present within its limited range in the driest versions of this community (e.g., in Elbert and Wilkes counties of Piedmont Georgia and Greenwood and McCormick counties of Piedmont South Carolina). Shrubs include Arundinaria gigantea (which may be dominant in some stands), Lindera benzoin, Ilex decidua, Callicarpa americana, and Corylus americana. Woody vines may be prominent in stands. The herb stratum is fairly diverse.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: As defined, the primary range of this type is in the southern part of the slate belts (Subsection 231Aa), the nearby Piedmont-Ridge and Valley transition region (Subsections 231Ac, 231Db, 231Dd) and the immediately adjacent Coastal Plain (as at Fort Benning, Georgia/Alabama) where all the rivers flow southward from the Piedmont and do not provide vectors into the Piedmont for Coastal Plain species such as Quercus pagoda, which is largely absent from stands of this type. Its range could include portions of the middle Chattahoochee River, the Savannah River and their tributaries, and the upper Saluda River, as well as the upper portions of the Flint, the Yellow River, the Oconee and Little Oconee, the Ogeechee, and their tributaries. In Alabama, in the Piedmont-Ridge and Valley transition region, this would include the Coosa and Tallapoosa and their tributaries as well. The northern extent of this type extends to the Southern Ridge and Valley of Georgia and Tennessee. The name of this association may need revision; the distinctions (floristic and nomenclatural) between this type and other more common Piedmont bottomland associations need further investigation. A study in the lower Piedmont of Alabama by Golden (1979) does not recognize an equivalent to this type, as his study site did not contain enough unimpounded bottomland to have any samples related to it.

Similar NVC Types: No Data Available
note: No Data Available

Physiognomy and Structure: No Data Available

Floristics: The canopy of stands is typically dominated by Quercus shumardii and Quercus michauxii with Liquidambar styraciflua and Quercus nigra. This type is found either in the Piedmont, in the transition area to the Ridge and Valley, or just barely coastward of the Fall-line, so Quercus pagoda is either not present at all, or if present it is at very low frequency. Other canopy and/or subcanopy species may include Acer floridanum (= Acer barbatum), Liriodendron tulipifera, Tilia americana var. heterophylla, Carya cordiformis (which may have high cover), Carya carolinae-septentrionalis, Juglans nigra, Quercus phellos, and Pinus taeda. Occasionally, Celtis laevigata, Platanus occidentalis or Betula nigra may be present at low values, but they are not characteristic. The rare tree Quercus oglethorpensis may be present within its limited range (e.g., in Elbert and Wilkes counties of Piedmont Georgia). Some additional subcanopy and tall-shrub components are Fagus grandifolia, Fraxinus pennsylvanica, Fraxinus americana, Carpinus caroliniana, Ulmus alata, Acer floridanum, Acer leucoderme, Halesia tetraptera, Carya tomentosa (= Carya alba), Carya ovalis, Cornus florida, Morus rubra, Prunus serotina, Ilex decidua, Cercis canadensis, Aesculus pavia, Aesculus sylvatica, and Asimina triloba. Shrubs include Arundinaria gigantea (which may be dominant in some stands), Lindera benzoin, Ilex decidua, Callicarpa americana, and Corylus americana. Woody vines may be prominent in stands. They include Toxicodendron radicans, Vitis rotundifolia, Parthenocissus quinquefolia, Bignonia capreolata, Smilax bona-nox, Berchemia scandens, Campsis radicans, Clematis virginiana, Decumaria barbara, and Smilax rotundifolia. The herb stratum includes Chasmanthium latifolium, Dichanthelium boscii (= Panicum boscii), Ageratina altissima (= Eupatorium rugosum), Solidago caesia, Carex abscondita, Vernonia gigantea, Boehmeria cylindrica, Polystichum acrostichoides, Mitchella repens, Bromus pubescens, Dioscorea quaternata, Symphyotrichum lateriflorum (= Aster lateriflorus), Commelina virginica, Carex crinita, Carex intumescens, Carex laxiflora, Carex picta, Carex rosea, Carex typhina, Carex venusta, Matelea carolinensis, and others. There is some concern about the identity of the Tilia americana in stands of this association. In some examples, it could be Tilia americana var. caroliniana. The exotic species Lonicera japonica, Ligustrum sinense, and Microstegium vimineum may invade stands of this association. Both of the nominal oaks may be of lesser frequency north of about the latitude of Atlanta and Athens, Georgia (Burns and Honkala 1990a).

Dynamics:  No Data Available

Environmental Description:  Stands of this association occur in broad flat floodplains of medium-sized rivers, or as smaller occurrences along creeks and adjacent floodplains.

Geographic Range: This bottomland forest is found in the southern Piedmont of Georgia and South Carolina, as well as the Piedmont-Ridge and Valley transition region of Alabama and possibly the adjacent Upper East Gulf Coastal Plain of Georgia and Alabama. It has also been documented from the Southern Ridge and Valley of Georgia and Tennessee. Its range could include portions of the middle Chattahoochee River, the Savannah River and their tributaries, and the upper Saluda River, as well as the upper portions of the Flint, the Yellow River, the Oconee and Little Oconee, the Ogeechee, and their tributaries. In Alabama, in the Piedmont-Ridge and Valley transition region, this would include the Coosa and Tallapoosa and their tributaries as well. In the Southern Ridge and Valley of Georgia and Tennessee, it apparently includes tributaries of the Tennessee River (Lookout Creek).

Nations: US

States/Provinces:  AL, GA, SC




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: G3

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: < Alluvial river and swamp system - Piedmont (Wharton 1978)

Concept Author(s): M. Pyne

Author of Description: M. Pyne

Acknowledgements: No Data Available

Version Date: 06-27-01

  • Burns, R. M., and B. H. Honkala, technical coordinators. 1990a. Silvics of North America: Volume 1. Conifers. Agriculture Handbook 654. USDA Forest Service, Washington, DC. 675 pp.
  • Chafin, L. 2011. Georgia''s natural communities and associated rare plant and animal species: Thumbnail accounts. Based on "Guide to the Natural Communities of Georgia," by Edwards et al. 2013. University of Georgia Press. Georgia Nongame Conservation Section, Wildlife Resources Division, Georgia Department of Natural Resources. 125 pp.
  • NatureServe Ecology - Southeastern United States. No date. Unpublished data. NatureServe, Durham, NC.
  • Nelson, J. B. 1986. The natural communities of South Carolina: Initial classification and description. South Carolina Wildlife and Marine Resources Department, Division of Wildlife and Freshwater Fisheries, Columbia, SC. 55 pp.
  • Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.
  • Wharton, C. H. 1978. The natural environments of Georgia. Georgia Department of Natural Resources, Atlanta. 227 pp.
  • White, R. D., Jr., and T. Govus. 2003. Vascular plant inventory and plant community classification for Ninety Six National Historic Site. Prepared for the National Park Service. NatureServe, Durham, NC. 146 pp.