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CEGL007706 Andropogon gerardii - Schizachyrium scoparium - (Calamagrostis coarctata, Panicum virgatum) Grassland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Big Bluestem - Little Bluestem - (Nuttall''s Reedgrass, Switchgrass) Grassland
Colloquial Name: Southeastern Highland Rim Barrens (Big Bluestem - Reedgrass Mesic Type)
Hierarchy Level: Association
Type Concept: This association covers mesic perennial deep soil grasslands of the southeastern Highland Rim of Tennessee. This association is dominated by Andropogon gerardii along with Schizachyrium scoparium. Other graminoid species present include Andropogon glomeratus, Calamagrostis coarctata, Panicum virgatum, Schizachyrium scoparium, Sorghastrum nutans, and Pteridium aquilinum. Other dominants may include Eurybia hemispherica, Symphyotrichum dumosum, Helianthus angustifolius, Potentilla simplex, Solidago odora, Solidago rugosa, and Polytrichum commune; found to a lesser extent are Aristida purpurascens var. virgata, Chasmanthium laxum, Dichanthelium aciculare, Dichanthelium dichotomum, Gymnopogon brevifolius, Panicum anceps, Panicum rigidulum, and Panicum verrucosum. Woody species may include Acer rubrum, Rhus copallinum, Rubus argutus, and Smilax glauca.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Described from Arnold Air Force Base, Coffee County, Tennessee. See also ~Andropogon gerardii - (Andropogon glomeratus, Panicum virgatum, Sorghastrum nutans) Grassland (CEGL007705)$$, which is typically wetter.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This association is dominated by Andropogon gerardii along with Schizachyrium scoparium. Other species present include Andropogon glomeratus, Calamagrostis coarctata, Panicum virgatum, Schizachyrium scoparium, Sorghastrum nutans, and Pteridium aquilinum. Other dominants may include Eurybia hemispherica (= Aster paludosus ssp. hemisphericus), Symphyotrichum dumosum (= Aster dumosus), Helianthus angustifolius, Potentilla simplex, Solidago odora, Solidago rugosa, and Polytrichum commune; found to a lesser extent are Aristida purpurascens var. virgata (= Aristida virgata), Chasmanthium laxum, Dichanthelium aciculare (= Dichanthelium angustifolium), Dichanthelium dichotomum, Gymnopogon brevifolius, Panicum anceps, Panicum rigidulum, and Panicum verrucosum. Woody species may include Acer rubrum, Rhus copallinum, Rubus argutus, and Smilax glauca.
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: The original range was presumably confined to The Barrens of the southeastern Highland Rim of Tennessee, which comprise about 500 square miles (over 300,000 ha). Scattered examples could have formerly occurred farther north along the eastern Highland Rim of Tennessee. It is presently presumed to be extirpated in these other areas.
Nations: US
States/Provinces: TN
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.684675
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G2?
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 2 Shrub & Herb Vegetation Class | C02 | 2 |
| Subclass | 2.B Temperate & Boreal Grassland & Shrubland Subclass | S18 | 2.B |
| Formation | 2.B.2 Temperate Grassland & Shrubland Formation | F012 | 2.B.2 |
| Division | 2.B.2.Nc Eastern North American Grassland & Shrubland Division | D024 | 2.B.2.Nc |
| Macrogroup | 2.B.2.Nc.3 Little Bluestem - Dropseed species Central Interior Calcareous Scrub & Grassland Macrogroup | M508 | 2.B.2.Nc.3 |
| Group | 2.B.2.Nc.3.a Big Bluestem - Little Bluestem - Ashy Sunflower Patch Prairie Group | G174 | 2.B.2.Nc.3.a |
| Alliance | A3889 Big Bluestem - Switchgrass - Rough Dropseed Southeastern Patch Prairie Alliance | A3889 | 2.B.2.Nc.3.a |
| Association | CEGL007706 Big Bluestem - Little Bluestem - (Nuttall''s Reedgrass, Switchgrass) Grassland | CEGL007706 | 2.B.2.Nc.3.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Andropogon gerardii - Schizachyrium scoparium - (Calamagrostis coarctata, Panicum virgatum) Herbaceous Vegetation (TNC 1998a)
- Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.
- TDNH [Tennessee Division of Natural Heritage]. 2018. Unpublished data. Tennessee Division of Natural Heritage, Nashville, TN.
- TNC [The Nature Conservancy]. 1998a. An investigation and assessment of the vegetation of Arnold Air Force Base. Coffee and Franklin counties, Tennessee. The Nature Conservancy, Tennessee Field Office, Nashville. 37 pp. plus appendices.