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A3213 Quercus buckleyi - Quercus sinuata var. breviloba - Quercus laceyi Dry Forest & Woodland Alliance
Type Concept Sentence: This alliance includes woodland vegetation dominated or codominated by Quercus buckleyi, Fraxinus albicans, Quercus sinuata var. breviloba, Quercus laceyi, and Ulmus crassifolia occurring in dry landscape settings in the Edwards Plateau and adjacent regions of Texas and possibly Oklahoma.
Common (Translated Scientific) Name: Texas Red Oak - White Shin Oak - Lacey Oak Dry Forest & Woodland Alliance
Colloquial Name: Southern Plateau Dry Deciduous Oak Forest & Woodland
Hierarchy Level: Alliance
Type Concept: This alliance includes primarily deciduous woodland vegetation dominated or codominated by Quercus buckleyi, Fraxinus albicans, Quercus sinuata var. breviloba, Quercus laceyi, and Ulmus crassifolia occurring in dry landscape settings in the Edwards Plateau and adjacent regions of Texas and possibly Oklahoma. The understory may include Diospyros texana, Mahonia trifoliolata, Sophora secundiflora, and Opuntia engelmannii. Herbaceous cover may be high where individual trees are scattered forming an open canopy, or sparse within denser canopied mottes. Herbaceous composition resembles that of the surrounding uplands. Canopy cover may consist of scattered individual trees or groups of trees (mottes) interspersed with grasslands. This alliance occurs in dry landscape settings of more-or-less level uplands and mesatops. Fire, climate and edaphic factors are thought to play an important role in maintaining these woodlands.
Diagnostic Characteristics: Diagnostic criteria include a mostly deciduous canopy on more or less level uplands and mesas in the Edwards Plateau and adjacent regions of Texas and possibly Oklahoma.
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This alliance is a placeholder for undescribed vegetation associations. More information is needed to flesh out detailed floristic, environment, and range. It is related to Edwards Plateau: Deciduous Oak / Evergreen Motte and Woodland, and Edwards Plateau: Oak / Hardwood Motte and Woodland (Elliott 2011). It is closely related to and shares many species with the other alliances in this group (G126). Differences between them are related to the dominance of those species and their growth form (broad-leaved subevergreen, needle-leaved evergreen, or deciduous).
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: This alliance is a woodland with scattered individual trees or groups of trees (mottes) interspersed with grasslands.
Floristics: This alliance is characterized by Quercus buckleyi, and other deciduous trees such as Celtis laevigata, Fraxinus albicans (= Fraxinus texensis), Ulmus crassifolia, Quercus sinuata var. breviloba, and Quercus laceyi. Lesser amounts of evergreen trees such as Quercus fusiformis and Juniperus ashei may also be present. An open understory may contain Diospyros texana, Mahonia trifoliolata, Sophora secundiflora, and Opuntia engelmannii. Herbaceous cover may be high where individual trees are scattered forming an open canopy, or sparse within denser canopied mottes. Herbaceous composition resembles that of the surrounding uplands and may include Schizachyrium scoparium, Bothriochloa laguroides ssp. torreyana, Nassella leucotricha, Aristida purpurea, Bouteloua curtipendula, Bothriochloa barbinodis, Sorghastrum nutans, Bouteloua hirsuta var. pectinata, Bouteloua trifida, Bouteloua rigidiseta, Erioneuron pilosum, Hilaria belangeri, and many others.
Dynamics: Fire, climate and edaphic factors are thought to play an important role in maintaining these woodlands.
Environmental Description: This alliance occurs in dry landscape settings of more-or-less level uplands and mesatops.
Geographic Range: The distribution of this alliance is centered on the Edwards Plateau region of Texas and may range into adjacent regions of Texas and Oklahoma.
Nations: US
States/Provinces: OK?, TX
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.899337
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 | A3213 Texas Red Oak - White Shin Oak - Lacey Oak Dry Forest & Woodland Alliance | A3213 | 1.B.1.Nd.3.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: > Edwards Plateau: Deciduous Oak / Evergreen Motte and Woodland (1103) [CES303.660.4] (Elliott 2011)
> Edwards Plateau: Oak / Hardwood Motte and Woodland (1104) [CES303.660.5] (Elliott 2011)
> Edwards Plateau: Oak / Hardwood Motte and Woodland (1104) [CES303.660.5] (Elliott 2011)
- Elliott, L. 2011. Draft descriptions of systems, mapping subsystems, and vegetation types for Phases I, II, III, and IV. Unpublished documents. Texas Parks and Wildlife Ecological Systems Classification and Mapping Project. Texas Natural History Survey, The Nature Conservancy of Texas, San Antonio.
- Faber-Langendoen, D., J. Drake, M. Hall, G. Kittel, S. Menard, C. Nordman, M. Pyne, M. Reid, M. Russo, K. Schulz, L. Sneddon, K. Snow, and J. Teague. 2013-2019b. Screening alliances for induction into the U.S. National Vegetation Classification: Part 1 - Alliance concept review. NatureServe, Arlington, VA.