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CEGL004041 Uniola paniculata - Panicum amarum var. amarulum - Iva imbricata Grassland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Sea-oats - Coastal Panicgrass - Seacoast Marsh-elder Grassland
Colloquial Name: Northern Gulf Embryonic Beach Dune Grassland
Hierarchy Level: Association
Type Concept: This foredune grassland occurs from the Florida Panhandle (Franklin County) westwards to Mississippi. This community is dominated by Uniola paniculata and Panicum amarum var. amarulum. Schizachyrium maritimum and Iva imbricata are frequent associates. Other characteristic species include Galactia microphylla, Chrysopsis godfreyi, Hydrocotyle umbellata, Heterotheca subaxillaris, Ipomoea imperati, Sesuvium portulacastrum, and Sporobolus virginicus.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Based on Johnson and Muller (1993a). Estimated extent of about 4400 acres remaining in Florida. Other Gulf Coast states have similar communities, such as ~Uniola paniculata - (Panicum amarum) - Croton punctatus Grassland (CEGL002218)$$ in Texas; need to continue the assessment of geographical variability.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: According to Johnson (1997) this foredune beach community is dominated by Uniola paniculata and Panicum amarum (var. amarulum), with Schizachyrium maritimum and Iva imbricata as frequent associates. The species composition changes as a dune is protected from sand burial; Schizachyrium maritimum will replace both Uniola and Panicum.
Dynamics: This community persists as long as it continues to be exposed to sand burial. Within 2-6 years after a dune ridge is protected, Schizachyrium maritimum becomes dominant and replaces both Uniola paniculata and Panicum amarum (var. amarulum).
Environmental Description: Bare sand averages 79% in this community, somewhat more than related dune vegetation of the region (Johnson 1997).
Geographic Range: This association occurs along the northern Gulf of Mexico from the western panhandle of Florida to Mississippi.
Nations: US
States/Provinces: AL, FL, MS
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.686359
Confidence Level: Moderate
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.4 Temperate to Polar Scrub & Herb Coastal Vegetation Formation | F005 | 2.B.4 |
| Division | 2.B.4.Na Eastern North American Coastal Scrub & Herb Vegetation Division | D026 | 2.B.4.Na |
| Macrogroup | 2.B.4.Na.2 American Beachgrass - Sea-oats - Seaside Goldenrod Dune & Grassland Macrogroup | M057 | 2.B.4.Na.2 |
| Group | 2.B.4.Na.2.a Wax-myrtle - Sea-oats - Shore Little Bluestem Dune & Grassland Group | G494 | 2.B.4.Na.2.a |
| Alliance | A1199 Sea-oats - Bitter Panicgrass Dune Grassland Alliance | A1199 | 2.B.4.Na.2.a |
| Association | CEGL004041 Sea-oats - Coastal Panicgrass - Seacoast Marsh-elder Grassland | CEGL004041 | 2.B.4.Na.2.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Uniola / Panicum Dunes (Johnson 1997)
= Florida Panhandle beach dune community (Johnson et al. 1992a)
= Panhandle Beach Dune (Johnson and Muller 1993a)
= Florida Panhandle beach dune community (Johnson et al. 1992a)
= Panhandle Beach Dune (Johnson and Muller 1993a)
- ALNHP [Alabama Natural Heritage Program]. 2018. Unpublished data on file. Alabama Natural Heritage Program, Auburn University.
- FNAI [Florida Natural Areas Inventory]. 2010a. Guide to the natural communities of Florida: 2010 edition. Florida Natural Areas Inventory, Tallahassee, FL. 228 pp. [https://fnai.org/naturalcommguide.cfm]
- Johnson, A. F. 1997. Rates of vegetation succession on a coastal dune system in northwest Florida. Journal of Coastal Research 13:373-384.
- Johnson, A. F., J. W. Muller, and K. A. Bettinger. 1992a. An assessment of Florida''s remaining coastal upland natural communities: Panhandle. The Nature Conservancy, Florida Natural Areas Inventory, Tallahassee. 12 pp. plus appendices.
- Johnson, A. F., and J. W. Muller. 1993a. An assessment of Florida''s remaining coastal upland natural communities: Final summary report. The Nature Conservancy, Florida Natural Areas Inventory, Tallahassee. 37 pp.
- MSNHP [Mississippi Natural Heritage Program]. 2006. Ecological communities of Mississippi. Museum of Natural Science, Mississippi Department of Wildlife, Fisheries, and Parks, Jackson, MS. 9 pp.
- Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.