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CEGL000680 Quercus arizonica / Bouteloua curtipendula Scrub Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Arizona White Oak / Sideoats Grama Scrub Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This diverse Madrean woodland association is known from the "Borderlands" area of southeastern Arizona and southwestern New Mexico, and in the Sierra Del Carmen of northeastern Coahuila, Mexico (and potentially in Big Bend National Park, Texas). Stands occur on gentle to moderate hillslopes of northerly aspects and at elevations ranging from 1310-1950 m (4300-6400 feet). This association is characterized by moderately open tree canopies (30-60% cover) of the evergreen oaks Quercus arizonica or Quercus grisea. Juniperus deppeana or Pinus cembroides are usually present but not dominant. The understory is diverse (86 species have been recorded for the association), characteristically grassy, and dominated by Bouteloua curtipendula. Other common grasses include Bouteloua gracilis, Muhlenbergia emersleyi, and Eragrostis intermedia.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: The western Sierra Madre representatives of this type may have somewhat different understory compositions from those of the eastern Sierra Madre.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This association is characterized by moderately open tree canopies (30-60% cover) of the evergreen oaks Quercus arizonica or Quercus grisea. Juniperus deppeana or Pinus cembroides are usually present but not dominant. The understory is diverse (86 species have been recorded for the association), characteristically grassy, and dominated by Bouteloua curtipendula. Other common grasses include Bouteloua gracilis, Muhlenbergia emersleyi, and Eragrostis intermedia.
Dynamics: No Data Available
Environmental Description: Stands occur on gentle to moderate hillslopes of northerly aspects and at elevations ranging from 1310-1950 m (4300-6400 feet).
Geographic Range: This association is known from the Borderlands area of southeastern Arizona and southwestern New Mexico, and in the Sierra Del Carmen of northeastern Coahuila, Mexico (and potentially in Big Bend National Park, Texas). It may occur elsewhere in southwestern New Mexico, southeastern Arizona, and northern Mexico.
Nations: MX,US
States/Provinces: MXCOA, NM, TX?
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.684284
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G3
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.1 Alligator Juniper - Mexican Pinyon - Arizona White Oak Madrean Lowland Evergreen Woodland Macrogroup | M010 | 1.B.1.Nd.1 |
| Group | 1.B.1.Nd.1.a Arizona White Oak - Emory Oak - Mexican Blue Oak Woodland Group | G201 | 1.B.1.Nd.1.a |
| Alliance | A3101 Arizona White Oak - Emory Oak - Gray Oak Scrub Woodland Alliance | A3101 | 1.B.1.Nd.1.a |
| Association | CEGL000680 Arizona White Oak / Sideoats Grama Scrub Woodland | CEGL000680 | 1.B.1.Nd.1.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Quercus arizonica / Bouteloua curtipendula PA (Bourgeron et al. 1993b)
= Quercus arizonica / Bouteloua curtipendula PA (Muldavin et al. 1998a)
= Quercus arizonica / Bouteloua curtipendula PA (Wood et al. 1999)
= Quercus arizonica / Bouteloua curtipendula PA (Muldavin et al. 1998a)
= Quercus arizonica / Bouteloua curtipendula PA (Wood et al. 1999)
- Bourgeron, P. S., L. D. Engelking, H. C. Humphries, E. Muldavin, and W. H. Moir. 1993b. Assessing the conservation value of the Gray Ranch: Rarity, diversity and representativeness. Unpublished report prepared for The Nature Conservancy by the Western Heritage Task Force, Boulder, CO. (Volume I and II).
- Bourgeron, P. S., and L. D. Engelking, editors. 1994. A preliminary vegetation classification of the western United States. Unpublished report. The Nature Conservancy, Western Heritage Task Force, Boulder, CO. 175 pp. plus appendix.
- Muldavin, E., V. Archer, and P. Neville. 1998a. A vegetation map of the Borderlands Ecosystem Management Area. Final report submitted to USDA Forest Service, Rocky Mountain Experiment Station, Flagstaff, AZ, by the New Mexico Natural Heritage Program, University of New Mexico, Albuquerque, NM. 58 pp.
- NHNM [Natural Heritage New Mexico]. No date. Unpublished data on file. Natural Heritage New Mexico, University of New Mexico, Albuquerque.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.
- Wood, S., G. Harper, E. Muldavin, and P. Neville. 1999. Vegetation map of the Sierra del Carmen, U.S.A. and Mexico. Final report submitted to Big Bend National Park by the New Mexico Natural Heritage Program, University of New Mexico, Albuquerque, NM. 57 pp.