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CEGL005160 Quercus turbinella - Ptelea trifoliata - Fraxinus anomala Mesic Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Sonoran Scrub Oak - Common Hoptree - Singleleaf Ash Mesic Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This scrub oak shrubland association is currently described from Grand Canyon National Park in Arizona. More survey and classification work are needed to fully characterize this type. It occurs on sideslopes and in drainages at 975 to 1350 m (3200-3950 feet) elevation, but can occur as high as 1600 m (5300 feet). It favors moderately steep gradients (23-35°) on northern aspects, but can also occur on much gentler slopes (4-6°). Soils are well- to rapidly-drained silty loams or loamy sands. The underlying geology is typically limestone or sandstone. Vegetation is codominated by three different shrub species: the tall shrub Ptelea trifoliata, the tall shrub Fraxinus anomala, and the short shrub Quercus turbinella. The canopy trees Pinus edulis and Juniperus osteosperma occasionally occur. The short-shrub stratum also commonly includes Rhus trilobata, Ephedra aspera, and Ceanothus greggii. Agave utahensis and Gutierrezia sarothrae occur from time to time in a very sparse dwarf-shrub layer. Poa fendleriana, Bromus rubens, and Achnatherum speciosum occasionally occur in the very sparse graminoid layer. Artemisia ludoviciana is the only species which regularly occurs in the fairly weak forb understory.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: No Data Available
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Vegetation is codominated by three different shrub species: the tall shrub Ptelea trifoliata, the tall shrub Fraxinus anomala, and the short shrub Quercus turbinella. The canopy trees Pinus edulis and Juniperus osteosperma occasionally occur. The short-shrub stratum also commonly includes Rhus trilobata, Ephedra aspera (= Ephedra fasciculata), and Ceanothus greggii. Agave utahensis and Gutierrezia sarothrae occur from time to time in a very sparse dwarf-shrub layer. Poa fendleriana, Bromus rubens, and Achnatherum speciosum occasionally occur in the very sparse graminoid layer. Artemisia ludoviciana is the only species which regularly occurs in the fairly weak forb understory.
Dynamics: No Data Available
Environmental Description: This scrub oak shrubland occurs on sideslopes and in drainages at 975 to 1350 m (3200-3950 feet) elevation, but can occur as high as 1600 m (5300 feet). It favors moderately steep gradients (23-35°) on northern aspects, but can also occur on much gentler slopes (4-6°). Soils are well- to rapidly-drained silty loams or loamy sands. The underlying geology is typically limestone or sandstone.
Geographic Range: This shrubland association is currently known from Grand Canyon National Park in northern Arizona. More survey work is needed to fully document its global range.
Nations: US
States/Provinces: AZ
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.840630
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: GNR
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 2 Shrub & Herb Vegetation Class | C02 | 2 |
| Subclass | 2.B Temperate & Boreal Grassland & Shrubland Subclass | S18 | 2.B |
| Formation | 2.B.2 Temperate Grassland & Shrubland Formation | F012 | 2.B.2 |
| Division | 2.B.2.Ng Western North American Interior Chaparral Division | D061 | 2.B.2.Ng |
| Macrogroup | 2.B.2.Ng.2 Sonoran Scrub Oak - Pointleaf Manzanita - Desert Ceanothus Warm Interior Chaparral Macrogroup | M091 | 2.B.2.Ng.2 |
| Group | 2.B.2.Ng.2.b Sonoran Scrub Oak - Desert Ceanothus - Mexican Manzanita Chaparral Group | G281 | 2.B.2.Ng.2.b |
| Alliance | A0793 Sonoran Scrub Oak Chaparral Alliance | A0793 | 2.B.2.Ng.2.b |
| Association | CEGL005160 Sonoran Scrub Oak - Common Hoptree - Singleleaf Ash Mesic Shrubland | CEGL005160 | 2.B.2.Ng.2.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Quercus turbinella - Ptelea trifoliata - Fraxinus anomala Mesic Shrubland (Reid and Hall 2010)
- Kearsley, M. J. C., K. Green, M. Tukman, M. Reid, M. Hall, T. J. Ayers, and K. Christie. 2015. Grand Canyon National Park-Grand Canyon / Parashant National Monument vegetation classification and mapping project. Natural Resource Report NPS/GRCA/NRR--2015/913. National Park Service, Fort Collins, CO. 75 pp. plus appendices.
- Reid, M. S., and M. E. Hall. 2010. Vegetation classification of Grand Canyon National Park. Draft report submitted to National Park Service, Fort Collins, CO.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.