Print Report

CEGL007947 Pinus echinata - (Pinus taeda) - Quercus falcata / Dichanthelium sphaerocarpon Forest

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Shortleaf Pine - (Loblolly Pine) - Southern Red Oak / Round-fruit Witchgrass Forest

Colloquial Name: West Gulf Coastal Plain Dry Shortleaf Pine Forest

Hierarchy Level:  Association

Type Concept: This forest occurs west of the Mississippi River in the West Gulf and Upper West Gulf Coastal Plain ecoregions. Stands are dominated by Pinus echinata with a host of primarily dry and dry-mesic site hardwood species. The most characteristic hardwood, often the second most important overstory tree, is Quercus falcata. A number of shrub and herbaceous species are usually present which are intermediate in moisture preference. This type lacks the relatively rich component of legumes, members of the sunflower family, and other species diagnostic of subxeric Pinus echinata communities of the region, and lacks more mesic species indicative of ~Pinus echinata - Quercus alba / Viburnum (dentatum, acerifolium) Forest (CEGL003855)$$.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: Further work is needed to ascertain the northern distribution of this type in Texas and Arkansas, and extent in western Louisiana.

Similar NVC Types: No Data Available
note: No Data Available

Physiognomy and Structure: No Data Available

Floristics: In most known stands referable to this type, Pinus echinata may have been the only pine species present, assuming historical fire regimes were as frequent as is often postulated. Given long periods of fire suppression, and only infrequent winter burning, the relative abundance and importance of Pinus taeda has likely increased in many stands and is now frequently important in existing examples. Both Pinus palustris and Quercus alba are typically absent or rare in these stands. In addition to the nominal species, other overstory and subcanopy species may also include Liquidambar styraciflua, Quercus velutina, Quercus nigra, Quercus stellata, Quercus margarettae, Quercus marilandica, Fraxinus americana, Cornus florida, Acer rubrum, and Ulmus alata. The shrub layer may include Chionanthus virginicus, Vaccinium arboreum, Forestiera ligustrina, Ilex vomitoria, Callicarpa americana, Morella cerifera (= Myrica cerifera), Rhus copallinum, and Frangula caroliniana. Understory species include Parthenocissus quinquefolia, Smilax glauca, Carex albicans var. australis (= Carex physorhyncha), Chasmanthium sessiliflorum, Vitis rotundifolia, Passiflora lutea, Piptochaetium avenaceum, Dichanthelium commutatum, Dichanthelium laxiflorum, Smilax tamnoides (= Smilax hispida), Solidago ulmifolia, Rubus argutus, Elephantopus tomentosus, Sanicula canadensis, Gelsemium sempervirens, Pteridium aquilinum, and other species (Turner et al. unpubl. data).

Dynamics:  In most examples Pinus echinata is believed to have been the historical dominant, although Pinus taeda may have been important in some areas and is frequently important in existing examples. It is believed that past land-use practices and alteration of fire regimes may have allowed the relative percentage of Pinus taeda to increase in many of these examples.

Environmental Description:  These communities occur most commonly on upper and middle slopes on sandy or loamy soils with acidic surface pH, and moderate nutrient levels. Many, if not most, known examples occur along the western and southwestern periphery of the pine-dominated portions of the Coastal Plain, primarily outside the native range of both Pinus palustris and Quercus alba. This type has been documented from the Willis, Yegua, and Sparta geological formations. Soils mapped at plot locations referred to this type include Annona and Huntsburg.

Geographic Range: This type is restricted to the Upper West Gulf Coastal Plain of Texas, and likely ranges into Arkansas and Louisiana. It could range into the West Gulf Coastal Plain.

Nations: US

States/Provinces:  AR?, LA?, TX




Confidence Level: Low - Poorly Documented

Confidence Level Comments: No Data Available

Grank: G2G3

Greasons: No Data Available


Concept Lineage: This OC type was merged into 7947

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: No Data Available

Concept Author(s): R.E. Evans

Author of Description: R.E. Evans

Acknowledgements: No Data Available

Version Date: 05-20-02

  • Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.
  • Turner, R. L., J. E. Van Kley, L. S. Smith, and R. E. Evans. No date. Unpublished data from the national forests and adjacent areas of the West Gulf Coastal Plain. The Nature Conservancy, Nacogdoches, TX.