Invalid Unit Specified
Association Detail Report: CEGL008440
Quercus alba - Nyssa sylvatica Sandstone Ridgetop Wet Forest

The U.S. National
Vegetation Classification
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Translated Name:White Oak - Blackgum Sandstone Ridgetop Wet Forest
Colloquial Name:Sandstone Ridgetop White Oak Depression Forest
This community occurs in upland depressions on sandstone on ridgetops in the Cumberland Plateau of Alabama. Quercus alba and Nyssa sylvatica form an open canopy along with Quercus falcata and Carya glabra. Other species include Acer rubrum var. rubrum, Diospyros virginiana, Pinus taeda, Smilax rotundifolia, Smilax glauca, Andropogon virginicus, Dichanthelium sp., Chamaecrista nictitans, Hypericum hypericoides, and Dichanthelium dichotomum var. dichotomum.
No Data Available
Vegetation Hierarchy
Name:Database Code:Classification Code:
Class 1 Forest & Woodland C01 1
Subclass 1.B Temperate & Boreal Forest & Woodland S15 1.B
Formation 1.B.3 Temperate Flooded & Swamp Forest F026 1.B.3
Division 1.B.3.Na Eastern North American-Great Plains Flooded & Swamp Forest D011 1.B.3.Na
Macrogroup M503 Central Hardwood Swamp Forest M503 1.B.3.Na.2
Group G654 South-Central Flatwoods & Pond Forest G654 1.B.3.Na.2.b
Alliance A1996 White Oak Wet Depression & Pond Forest A1996
Association CEGL008440 Sandstone Ridgetop White Oak Depression Forest CEGL008440
No Data Available

Related Type Name:

Short Citation:
  • NatureServe Ecology - Southeastern U.S. unpubl. data
  • Southeastern Ecology Working Group n.d.
States/Provinces:AL, TN?
Range:This community is known only from the Cumberland Plateau of Alabama, but is probably more widespread.
US Forest Service Ecoregions
Domain Name:
Division Name:
Province Name:Southeastern Mixed Forest Province
Province Code:231   Occurrence Status:Confident or certain
Section Name:Southern Cumberland Plateau Section
Section Code:231C     Occurrence Status:Confident or certain
No Data Available
Quercus alba and Nyssa sylvatica form an open canopy along with Quercus falcata and Carya glabra. Other species are Acer rubrum var. rubrum, Diospyros virginiana, Pinus taeda, Smilax rotundifolia, Smilax glauca, Andropogon virginicus, Dichanthelium sp., Chamaecrista nictitans, Hypericum hypericoides, and Dichanthelium dichotomum var. dichotomum.
This community occurs in shallow depressions on sandstone ridgetops or saddles. These depressions are flooded continuously for a relatively short period of time in the late winter and early spring, and probably also refill after heavy rain events in other seasons. The ponding prevents most herbs from growing.
Low - Poorly Documented
No Data Available
A.S. Weakley      Version Date: 14Jun2000

  • NatureServe Ecology - Southeastern United States. No date. Unpublished data. NatureServe, Durham, NC.
  • Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.

USNVC Credits: Detailed Description of the National Vegetation Classification Types

Date Accessed:

To cite a description:
Author(s). publicationYear. Description Title [last revised revisionDate]. United States National Vegetation Classification. Federal Geographic Data Committee, Washington, D.C.

About spatial standards:
The United States Federal Geographic Data Committee (hereafter called the FGDC) is tasked to develop geospatial data standards that will enable sharing of spatial data among producers and users and support the growing National Spatial Data Infrastructure (NSDI), acting under the Office of Management Budget (OMB) Circular A-16 (OMB 1990, 2000) and Executive Order #12906 (Clinton 1994) as amended by Executive Order #13286 (Bush 2003). FGDC subcommittees and working groups, in consultation and cooperation with state, local, tribal, private, academic, and international communities, develop standards for the content, quality, and transferability of geospatial data. FGDC standards are developed through a structured process, integrated with one another to the extent possible, supportable by the current vendor community (but are independent of specific technologies), and publicly available.

About this document
This document contains type descriptions at the Association level of the U.S. National Vegetation Classification. These descriptions were primarily written by NatureServe ecologists in collaboration with Federal Geographic Data Committee Vegetation Subcommittee and a wide variety of state, federal and private partners as a part of the implementation of the National Vegetation Classification. Formation descriptions were written by the Hierarchy Revisions Working Group. The descriptions are based on consultation with natural resource professionals, published literature, and other vegetation classification systems. The Ecological Society of America's Panel on Vegetation Classification is responsible for managing the review and formal adoption of these types into the National Vegetation Classification. Partners involved in the implementation of the USNVC include:

U.S. Government
  • Department of Agriculture (USDA)
  • Department of Commerce (DOC)
  • Department of Defense (DOD)
  • Department of the Interior (USDI)
  • Forest Service (FS) - Chair
  • National Agriculture Statistical Service (NASS)
  • Natural Resources Conservation Service (NRCS)
  • National Oceanic and Atmospheric Administration (NOAA)
  • National Marine Fisheries Service (NMFS)
  • U.S. Army Corps of Engineers (USACE)
  • U.S. Navy (NAVY)
  • Bureau of Land Management (BLM)
  • Fish and Wildlife Service (FWS)
  • National Park Service (NPS)
  • U.S. Geological Survey (USGS)
  • Environmental Protection Agency (EPA)
  • National Aeronautics and Space Administration (NASA)
Non U.S. Government
  • NatureServe (NS)
  • Ecological Society of America (ESA)

Given the dynamic nature of the standard, it is possible a type description is incomplete or in revision at the time of download; therefore, users of the data should track the date of access and read the revisions section of the website to understand the current status of the classification. While USNVC data have undergone substantial review prior to posting, it is possible that some errors or inaccuracies have remained undetected.

For information on the process used to develop these descriptions see:

Faber-Langendoen, D., T. Keeler-Wolf, D. Meidinger, D. Tart, B. Hoagland, C. Josse, G. Navarro, S. Ponomarenko, J.-P. Saucier, A. Weakley, P. Comer. 2014. EcoVeg: A new approach to vegetation description and classification. Ecological Monographs 84:533-561 (erratum 85:473).

Franklin, S., D. Faber-Langendoen, M. Jennings, T. Keeler-Wolf, O. Loucks, A. McKerrow, R.K. Peet, and D. Roberts. 2012. Building the United States National Vegetation Classification. Annali di Botanica 2: 1-9.

Jennings, M. D., D. Faber-Langendoen, O. L. Louckes, R. K. Peet, and D. Roberts. 2009. Standards for associations and alliances of the U.S. National Vegetation Classification. Ecological Monographs 79(2):173-199.

FGDC [Federal Geographic Data Committee]. 2008. Vegetation Classification Standard, FGDC-STD-005, Version 2. Washington, DC., USA. []

For additional information contact:

  • Implementation of the U.S. National Vegetation Classification Standard - Alexa McKerrow (
  • NatureServe's Development of NVC Type Descriptions - Don Faber-Langendoen (don_faber-
  • Ecological Society of America's Review of the Type Descriptions
  • Federal Geographic Data Committee - Vegetation Subcommittee's Activities - Marianne Burke (