Print Report
CEGL002973 Tetradymia canescens - Ephedra viridis Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Spineless Horsebrush - Mormon-tea Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association has only been described from Zion National Park, Utah. Additional global information will be added as it becomes available. Tetradymia canescens is the dominant shrub with 20-40% cover. The shrub layer is usually diverse with combinations of Ephedra viridis, Quercus gambelii, Amelanchier utahensis, Ericameria nauseosa, Artemisia tridentata, Purshia tridentata, and Purshia stansburiana. Combined shrub cover is approximately 50%. Herbaceous cover is minimal and may consist of Bromus tectorum, Bouteloua gracilis, Muhlenbergia pungens, and Sporobolus cryptandrus. This association was observed during the Accuracy Assessment phase of the vegetation mapping project and needs more data collected to fully describe. This association occurs in sandy soils of slickrock basins on flat to moderate slopes with variable aspects. Elevation ranges 1707 to 1830 m (5600-6000 feet).
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: No Data Available
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: This association has currently only been described from Zion National Park in southwestern Utah.
Nations: US
States/Provinces: UT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.684516
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: GNR
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 3 Desert & Semi-Desert Class | C03 | 3 |
| Subclass | 3.B Cool Semi-Desert Scrub & Grassland Subclass | S11 | 3.B |
| Formation | 3.B.1 Cool Semi-Desert Scrub & Grassland Formation | F033 | 3.B.1 |
| Division | 3.B.1.Ne Western North American Cool Semi-Desert Scrub & Grassland Division | D040 | 3.B.1.Ne |
| Macrogroup | 3.B.1.Ne.1 Yellow Rabbitbrush - Blackbrush / Indian Ricegrass Dry Shrubland & Grassland Macrogroup | M171 | 3.B.1.Ne.1 |
| Group | 3.B.1.Ne.1.b Blackbrush - Cutler''s Joint-fir - Torrey''s Joint-fir Colorado Plateau Shrubland Group | G312 | 3.B.1.Ne.1.b |
| Alliance | A3201 Mormon-tea Colorado Plateau Shrubland Alliance | A3201 | 3.B.1.Ne.1.b |
| Association | CEGL002973 Spineless Horsebrush - Mormon-tea Shrubland | CEGL002973 | 3.B.1.Ne.1.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Tetradymia canescens - Ephedra viridis Shrubland [Provisional] (Cogan et al. 2004)
- Cogan, D., M. Reid, K. Schulz, and M. Pucherelli. 2004. Zion National Park, Utah 1999-2003. Vegetation Mapping Project. Technical Memorandum 8260-03-01. Remote Sensing and GIS Group Technical Service Center, Bureau of Reclamation, Denver, CO. Appendix F: Vegetation Association Descriptions for Zion.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.