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CEGL002957 Purshia stansburiana Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Stansbury''s Cliffrose Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This cliffrose shrubland association occurs in northern Arizona, southeastern California and Utah. It is currently described from Grand Canyon National Park and Grand Canyon-Parashant National Monument in Arizona. More survey and classification work are needed to fully characterize this type. It occurs near the edge of canyon rims, and often occurs adjacent to pinyon-juniper or ponderosa pine woodlands. It typically occurs at 1800 to 2000 m (5950-6775 feet) elevation, but can be found as high as 2425 m (7975 feet). This association favors xeric south- or west-facing exposures on the high-level plateau or upper sideslopes below the rim. It typically occurs on flat ground (1-4°), but can be found on steeper gradients (18°) when occurring on sideslopes. Limestone is a common parent material, and exposed bedrock occurs in most stands. Trees are usually absent; however, scattered Pinus edulis or Juniperus osteosperma may sporadically occur in some stands. The shrub Purshia stansburiana dominates and characterizes this association, while other components of the shrub and understory strata often vary. The short shrubs Ephedra viridis and Artemisia tridentata are common. Dwarf-shrub cover and composition are somewhat variable; Gutierrezia sarothrae occurs in most stands, while various Opuntia species are also common. The graminoid understory is typically well-developed; however, stands lacking a graminoid understory are not uncommon. Either Poa fendleriana or Bouteloua gracilis usually dominates this layer, while various other native bunchgrasses, such as Elymus elymoides, Sporobolus cryptandrus, Hesperostipa comata, Bouteloua curtipendula, and Aristida arizonica, can occur. The exotic Bromus tectorum is commonly present. Forbs are typically well-represented, although again, composition varies among stands. Sanvitalia abertii and Artemisia ludoviciana commonly occur.
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 occurs in northern Arizona, southeastern California and Utah. More survey work is needed to fully document its global range.
Nations: US
States/Provinces: AZ, CA, UT
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.683075
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.a Joshua Tree - Eastern Mojave Buckwheat - Rough Joint-fir Mixed Desert Scrub Group | G296 | 3.B.1.Ne.1.a |
| Alliance | A0833 Stansbury''s Cliffrose Scrub Alliance | A0833 | 3.B.1.Ne.1.a |
| Association | CEGL002957 Stansbury''s Cliffrose Shrubland | CEGL002957 | 3.B.1.Ne.1.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Purshia stansburiana (Sawyer et al. 2009) [33.240.01]
= Purshia stansburiana Association (Evens et al. 2014)
= Purshia stansburiana Association (Evens et al. 2014)
- Evens, J. M., K. Sikes, D. Hastings, and J. Ratchford. 2014. Vegetation alliance descriptions for Lake Mead National Recreation Area, Death Valley National Park and Mojave National Preserve. Unpublished report submitted to USDI National Park Service, Mojave Desert Network Inventory and Monitoring Program. California Native Plant Society, Sacramento, CA.
- 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.
- Sawyer, J. O., T. Keeler-Wolf, and J. Evens. 2009. A manual of California vegetation. Second edition. California Native Plant Society, Sacramento CA. 1300 pp.
- Tendick, A., J. Spence, M. Reid, K. Shulz, G. Kittel, K. Green, A. Wight, and G. Wakefield. 2017. Vegetation classification and mapping project report, Glen Canyon National Recreation Area and Rainbow Bridge National Monument. Natural Resource Report NPS/NCPN/NRR—2017/1500. National Park Service, Fort Collins, CO. 1464 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.