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CEGL004249 Polygonum punctatum - Bidens laevis Shoreline Wet Meadow
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Dotted Smartweed - Smooth Beggarticks Shoreline Wet Meadow
Colloquial Name: Cumberland Island Dotted Smartweed - Smooth Beggarticks Marsh
Hierarchy Level: Association
Type Concept: This provisional association describes herbaceous wetland vegetation dominated by Bidens laevis and Polygonum punctatum and is documented only from Cumberland Island National Seashore, Georgia. This herbaceous wetland type occurs on poorly drained sandy loam soils within a complex of narrow swales and rises in the backdunes, where most swales are undergoing woody succession. This community is characterized by a dense herbaceous layer dominated by Bidens laevis, Phyla nodiflora, and Polygonum punctatum. In addition, there may be a sparse emergent tree canopy of Sabal palmetto and a sparse shrub layer of Morella cerifera. Other herbs present include Nekemias arborea, Boehmeria cylindrica, Centella erecta, Mikania scandens, Panicum dichotomiflorum var. bartowense, Pluchea odorata, Saccharum giganteum, Sacciolepis striata, and Symphyotrichum subulatum.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This provisional association was created based on one plot at Cumberland Island and should be re-examined based on any future data collected.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This community is characterized by a dense herbaceous layer dominated by Bidens laevis, Phyla nodiflora, and Polygonum punctatum. In addition, there may be a sparse emergent tree canopy of Sabal palmetto and a sparse shrub layer of Morella cerifera. Other herbs present include Nekemias arborea (= Ampelopsis arborea), Boehmeria cylindrica, Centella erecta, Mikania scandens, Panicum dichotomiflorum var. bartowense, Pluchea odorata, Saccharum giganteum, Sacciolepis striata, and Symphyotrichum subulatum.
Dynamics: Polygonum spp. frequently occur with high cover in freshwater interdune swales on Cumberland Island. The dominants of the herbaceous layer in these examples likely vary annually and across the season with water levels, because these low areas tend to be narrow and occur patchily within the backdune complex. The reasons for the lack of a dominant graminoid layer, such as Muhlenbergia filipes or Andropogon glomeratus, in this swale are uncertain.
Environmental Description: This herbaceous wetland type occurs on poorly drained sandy loam soils on Cumberland Island National Seashore. It occurs within a complex of narrow swales and rises in the backdunes, where most swales are undergoing woody succession.
Geographic Range: This herbaceous vegetation is currently only known from Cumberland Island, Georgia.
Nations: US
States/Provinces: GA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.817153
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: GNR
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 2 Shrub & Herb Vegetation Class | C02 | 2 |
| Subclass | 2.C Shrub & Herb Wetland Subclass | S44 | 2.C |
| Formation | 2.C.4 Temperate to Polar Freshwater Marsh, Wet Meadow & Shrubland Formation | F013 | 2.C.4 |
| Division | 2.C.4.Nd Eastern North American Temperate Freshwater Marsh, Wet Meadow & Shrubland Division | D323 | 2.C.4.Nd |
| Macrogroup | 2.C.4.Nd.3 Eastern North American Wet Shoreline Vegetation Macrogroup | M880 | 2.C.4.Nd.3 |
| Group | 2.C.4.Nd.3.b Eastern North American Wet Shoreline Vegetation Group | G756 | 2.C.4.Nd.3.b |
| Alliance | A1881 Knotweed species Shoreline Wet Meadow Alliance | A1881 | 2.C.4.Nd.3.b |
| Association | CEGL004249 Dotted Smartweed - Smooth Beggarticks Shoreline Wet Meadow | CEGL004249 | 2.C.4.Nd.3.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Polygonum punctatum - Bidens laevis Herbaceous Vegetation [Provisional] (McManamay 2017a)
- McManamay, R. H. 2017a. Vegetation mapping at Cumberland Island National Seashore. Natural Resource Report NPS/SECN/NRR--2017/1511. National Park Service, Fort Collins, CO. 422 pp.
- Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.