Print Report
CEGL004490 Pinus palustris / Quercus laevis / Aristida beyrichiana - Pterocaulon pycnostachyum Woodland
Type Concept Sentence: This association of northern and central peninsular Florida is characterized by a scattered Pinus palustris canopy with an Aristida beyrichiana-dominated ground layer; the subcanopy layer has Quercus laevis as the most abundant and constant species, with Quercus geminata and Quercus incana.
Common (Translated Scientific) Name: Longleaf Pine / Turkey Oak / Beyrich''s Three-awn - Dense-spike Blackroot Woodland
Colloquial Name: South Atlantic Coastal Plain Dry Longleaf Pine Sandhill
Hierarchy Level: Association
Type Concept: This association contains subxeric Pinus palustris communities of northern and central peninsular Florida. Soils are Entisols and Ultisols with relatively high seasonal water tables, base saturation, and fine particle composition (although silt and clay composition remains very low, <5% in the surface soil). This association is characterized by a scattered Pinus palustris canopy with an Aristida beyrichiana-dominated ground layer. Quercus laevis is the most abundant and constant species in the subcanopy layer, but Quercus geminata and Quercus incana may also be present and typically less abundant than Quercus laevis. Dominants, in addition to the nominals, include Licania michauxii, Serenoa repens, and Vaccinium stamineum in shrub layer and Pityopsis graminifolia and Schizachyrium scoparium var. stoloniferum in the herbaceous layer. The herbaceous layer is considerably more species-rich than xeric associations in peninsular Florida, with particularly high diversity in the legume family.
Diagnostic Characteristics: This type is distinguished by its high species richness (compared to xeric sandhills), absence of scrub oak species (Quercus myrtifolia and Quercus chapmanii), and lack of Quercus margarettae. Pinus elliottii var. densa is notably lacking from this type.
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Concept and description are based on 25 plots from the Carolina Vegetation Survey (http://vegbank.org/cite/VB.ds.199703). Type SSU2 of Carr et al. (2010) (North Florida Sub-xeric Sandhills) includes this association, but also spans part of ~Pinus palustris / Quercus margarettae / Aristida beyrichiana - Rhynchosia reniformis Woodland (CEGL007135)$$. The name and description have been changed based on existing plot data. Specifically, more emphasis is put on Pterocaulon pycnostachyum. Former Pinus palustris / Amorpha herbacea var. herbacea / Aristida stricta - Sorghastrum nutans Woodland (CEGL003569) was asserted to be a xeric sand association of Florida. The description of its composition was vague and in some ways similar to this association (CEGL004490). CEGL003569 is replaced by ~Pinus palustris / Quercus laevis / Aristida beyrichiana - Tephrosia chrysophylla Woodland (CEGL007132)$$.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This association is characterized by a scattered Pinus palustris canopy with an Aristida beyrichiana-dominated ground layer. Quercus laevis is the most abundant and constant species in the subcanopy layer, but Quercus geminata and Quercus incana may also be present, but typically less abundant than Quercus laevis. Dominants, in addition to the nominals, include Licania michauxii, Serenoa repens, and Vaccinium stamineum in shrub layer and Pityopsis graminifolia and Schizachyrium scoparium in the herbaceous layer. The shrub layer is relatively sparse, but still fairly species-rich (>16 species occur in 20% or more of plots). The herbaceous layer is considerably more species-rich than xeric associations in peninsular Florida, with particularly high diversity in the legume family, including Helianthemum carolinianum (= Crocanthemum carolinianum), Crotalaria rotundifolia, Dalea pinnata, Lespedeza hirta, Rhynchosia reniformis, Stylosanthes biflora, and Tephrosia chrysophylla. Other diagnostic species in the herbaceous layer include Balduina angustifolia, Carphephorus corymbosus, Cnidoscolus urens var. stimulosus (= Cnidoscolus stimulosus), Dyschoriste oblongifolia, Aristolochia serpentaria (= Endodeca serpentaria), Eriogonum tomentosum, Palafoxia integrifolia, Pterocaulon pycnostachyum, and Ruellia caroliniensis var. cinerascens (= Ruellia ciliosa).
Dynamics: No Data Available
Environmental Description: This subxeric association occurs on Entisols and Ultisols with higher seasonal water tables, base saturation, and fine particle composition (although silt and clay composition remains very low, <5% in the surface soil) than xeric types.
Geographic Range: This subxeric association occupies the ridges and highlands physiographic provinces of northern and central peninsular Florida. More specifically, it is known from Alachua, Citrus, Clay, Gilchrist, Levy, Marion, Nassau, Orange, Pasco, Putnam, and Volusia counties, Florida.
Nations: US
States/Provinces: FL
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688222
Confidence Level: High
Confidence Level Comments: No Data Available
Grank: G2G3
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.1 Warm Temperate Forest & Woodland Formation | F018 | 1.B.1 |
| Division | 1.B.1.Na Southeastern North American Forest & Woodland Division | D006 | 1.B.1.Na |
| Macrogroup | 1.B.1.Na.1 Longleaf Pine / Pineland Three-awn Woodland Macrogroup | M007 | 1.B.1.Na.1 |
| Group | 1.B.1.Na.1.c Longleaf Pine / Turkey Oak Xeric Woodland Group | G154 | 1.B.1.Na.1.c |
| Alliance | A4076 Longleaf Pine / Turkey Oak - Sand Live Oak Woodland Alliance | A4076 | 1.B.1.Na.1.c |
| Association | CEGL004490 Longleaf Pine / Turkey Oak / Beyrich''s Three-awn - Dense-spike Blackroot Woodland | CEGL004490 | 1.B.1.Na.1.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: < North Florida Sub-xeric Sandhills (Carr et al. 2010)
- Carr, S. C., K. M. Robertson, and R. K. Peet. 2010. A vegetation classification of fire-dependent pinelands of Florida. Castanea 75(2):153-189.
- Palmquist, K. A., R. K. Peet, and S. C. Carr. 2016. Xeric longleaf pine vegetation of the Atlantic and East Gulf Coast Coastal Plain: An evaluation and revision of associations within the U.S. National Vegetation Classification. Proceedings of the U.S. National Vegetation Classification. [in press]
- Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.