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CEGL004215 Quercus fusiformis - Quercus buckleyi / Quercus sinuata - (Juniperus ashei) Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Texas Live Oak - Texas Red Oak / Bastard Oak - (Ashe''s Juniper) Woodland
Colloquial Name: Edwards Plateau Limestone Mesatop Oak Woodland
Hierarchy Level: Association
Type Concept: This woodland occurs over shallow soils, on limestone mesatops in the Edwards Plateau of Texas. This association is dominated by Quercus fusiformis and Quercus buckleyi and characterized by a mixture of other trees and shrubs, including Ulmus crassifolia, Fraxinus albicans, Juniperus ashei, Quercus sinuata, Forestiera pubescens, Celtis laevigata var. reticulata, Toxicodendron radicans, Ilex decidua, Cercis canadensis var. texensis, Rhus trilobata, Sideroxylon lanuginosum, Lonicera albiflora, Frangula caroliniana, Ungnadia speciosa, and Opuntia engelmannii. Shrubs are usually located only under large trees or in mottes. With increasing fire frequency, the density of Juniperus ashei may decline. Herbaceous cover is variable and patchy in distribution. It may be dense in areas with shallow soils but sparse to absent in areas where bedrock is exposed at the surface. Herbaceous species include Carex planostachys, Nassella leucotricha, Limnodea arkansana, Chaerophyllum tainturieri, Gaillardia pulchella, Erodium texanum, and Thelesperma filifolium.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This description is based on data collected at Fort Hood, Texas. Further work is necessary to identify the range of this association. However, fire suppression and subsequent invasion by Juniperus ashei may make this community difficult to recognize. Juniperus ashei, Quercus sinuata var. breviloba, and Quercus fusiformis can co-occur on moderate slopes and uplands and the transition from a steeper slope to the upland (upper slope) or bottomland (toeslope). In these areas Quercus fusiformis is usually the overstory dominant with Quercus sinuata and Juniperus ashei in the understory. It is not clear if these areas are juniper-invaded Quercus fusiformis and/or Quercus sinuata woodland/shrublands.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This association is dominated by Quercus fusiformis and Quercus buckleyi and characterized by a mixture of other trees and shrubs, including Ulmus crassifolia, Fraxinus albicans (= Fraxinus texensis), Juniperus ashei, Quercus sinuata, Forestiera pubescens, Celtis laevigata var. reticulata, Toxicodendron radicans, Ilex decidua, Cercis canadensis var. texensis, Rhus trilobata, Sideroxylon lanuginosum, Lonicera albiflora, Frangula caroliniana, Ungnadia speciosa, and Opuntia engelmannii. Shrubs are usually located only under large trees or in mottes. With increasing fire frequency, the density of Juniperus ashei may decline. Herbaceous cover is variable and patchy in distribution. It may be dense in areas with shallow soils but sparse to absent in areas where bedrock is exposed at the surface. Herbaceous species include Carex planostachys, Nassella leucotricha, Limnodea arkansana, Chaerophyllum tainturieri, Gaillardia pulchella, Erodium texanum, and Thelesperma filifolium.
Dynamics: Canopy density depends on the disturbance history (especially fire) of the site. Because of the high cover of bare rock and rock outcrops, fires may have always been patchy. There is enough soil build-up in shallow depressions in the rock or breaks in the rock to support a patchy grass/forb cover between live oak clumps. With long-term fire suppression, Juniperus ashei can become a canopy dominant. Frequent fire will maintain an open woodland , with shrub cover under larger trees and high cover of grasses between the trees. High-intensity crownfires may occur in this community, especially once Juniperus ashei dominates the canopy. Following such a fire, the community may temporarily become a shrubland, dominated by resprouting Quercus fusiformis, Quercus buckleyi, and Quercus sinuata var. breviloba.
Environmental Description: This woodland occurs over shallow soils, on limestone mesatops in the Edwards Plateau of Texas. Large patches of bedrock are often exposed at the surface.
Geographic Range: This community occurs in the eastern Edwards Plateau of central Texas.
Nations: US
States/Provinces: TX
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.801770
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: GNR
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.Nd Madrean-Balconian Forest & Woodland Division | D060 | 1.B.1.Nd |
Macrogroup | 1.B.1.Nd.3 Texas Red Oak - Texas Live Oak - Ashe''s Juniper Forest & Woodland Macrogroup | M015 | 1.B.1.Nd.3 |
Group | 1.B.1.Nd.3.a Texas Live Oak - Ashe''s Juniper Dry Forest & Woodland Group | G126 | 1.B.1.Nd.3.a |
Alliance | A0477 Texas Live Oak - Ashe''s Juniper Woodland Alliance | A0477 | 1.B.1.Nd.3.a |
Association | CEGL004215 Texas Live Oak - Texas Red Oak / Bastard Oak - (Ashe''s Juniper) Woodland | CEGL004215 | 1.B.1.Nd.3.a |
Concept Lineage: CEGL002126 split into 4 new types: CEGL004170, CEGL004172, CEGL004221, and CEGL004215.
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: < IB3c. Plateau Live Oak Woodland (Allard 1990)
< Plateau Live Oak-Midgrass Series (Diamond 1993)
< Plateau Live Oak-Midgrass Series (Diamond 1993)
- Allard, D. J. 1990. Southeastern United States ecological community classification. Interim report, Version 1.2. The Nature Conservancy, Southeast Regional Office, Chapel Hill, NC. 96 pp.
- Diamond, D. D. 1993. Classification of the plant communities of Texas (series level). Unpublished document. Texas Natural Heritage Program, Austin. 25 pp.
- Southeastern Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Durham, NC.