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CEGL002351 Ephedra torreyana / Bouteloua gracilis - Pleuraphis jamesii Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Torrey''s Joint-fir / Blue Grama - James'' Galleta Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This shrubland association has only been described from a small area of Capitol Reef National Park, Utah; this summary is derived from plot data collected in the park in 1986 and 2004. The sampled plots are located on top of a mesa capped with basalt boulders. Sampled sites are flat to gently sloping (0-9%), occur between 1677 and 1755 m elevation, and are oriented to any aspect. The unvegetated surface has moderate cover of large rocks, small rocks and gravel. There is low exposure of bare soil and low cover of litter and live vegetation basal area. Soils are rapidly drained sandy clays derived from basalt that has eroded and been re-deposited as terrace boulder gravels. Total vegetation cover ranges from 25 to 75%. The vegetation is characterized by an open canopy of Ephedra torreyana shrubs with between 15 and 25% cover and a relatively dense understory dominated by the grasses Bouteloua gracilis and Pleuraphis jamesii with between 5 and 35% cover. Associated shrubs provide low cover and include Atriplex confertifolia, Echinocereus triglochidiatus, Opuntia polyacantha, and Yucca harrimaniae. The remaining herbaceous layer is depauperate and provides sparse cover, including the graminoids Aristida purpurea and Hesperostipa comata and the forbs Chaetopappa ericoides and Sphaeralcea coccinea.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association has only been described from Capitol Reef National Park. Until further inventory is completed, there is no global information.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This association has only been described from Capitol Reef National Park. Until further inventory is completed, there is no global information.
Dynamics: This association has only been described from Capitol Reef National Park. Until further inventory is completed, there is no global information.
Environmental Description: This association has only been described from Capitol Reef National Park. Until further inventory is completed, there is no global information.
Geographic Range: This association is known only from Capitol Reef National Park. It may occur in areas adjacent to the park on similar substrates.
Nations: US
States/Provinces: UT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.769039
Confidence Level: Low
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 | A2572 Torrey''s Joint-fir Shrubland Alliance | A2572 | 3.B.1.Ne.1.b |
| Association | CEGL002351 Torrey''s Joint-fir / Blue Grama - James'' Galleta Shrubland | CEGL002351 | 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: = Ephedra torreyana / Bouteloua gracilis - Pleuraphis jamesii Shrubland (Clark et al. 2009)
- Clark, D., M. Dela Cruz, T. Clark, J. Coles, S. Topp, A. Evenden, A. Wight, G. Wakefield, and J. Von Loh. 2009. Vegetation classification and mapping project report, Capitol Reef National Park. Natural Resource Report NPS/NCPN/NRTR--2009/187. National Park Service, Fort Collins, CO. 882 pp.
- Romme, W. H., K. D. Heil, J. M. Porter, and R. Fleming. 1993. Plant communities of Capitol Reef National Park, Utah. USDI National Park Service, Technical Report NPS/NAUCARE/NRTER-93/02. Cooperative Park Studies Unit, Northern Arizona University. 37 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.