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CEGL005391 Bebbia juncea Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Sweetbush Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This sweetbush shrubland association occurs in northern Arizona and southeastern California. It is currently described from Grand Canyon National Park and Grand Canyon-Parashant National Monument. More survey and classification work are needed to fully characterize this type. It occurs in low-level drainage channels and along benches and terraces just above these dry washes. It typically occurs at 425 to 875 m (1400-2975 feet) elevation, on gentle gradients (up to 8°), and favors south- and west-facing aspects. Soils are sandy and rapidly-drained. Rocks, gravel, and sand are major components of the ground cover, while a notable amount of cryptogamic soil crust occurs in many stands. Bebbia juncea dominates and characterizes this vegetation type. Other scattered species, such as Acacia greggii, Encelia farinosa, Ephedra aspera, and Trixis californica, also commonly occur in the short-shrub stratum. The dwarf-shrub layer is particularly sparse, although Porophyllum gracile and Opuntia basilaris commonly occur. Graminoid cover is similarly sparse; Aristida purpurea is common. Forbs are also poorly-represented and composition varies considerably.
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: Bebbia juncea dominates and characterizes this vegetation type. Other scattered species, such as Acacia greggii, Encelia farinosa, Ephedra aspera (= Ephedra fasciculata), and Trixis californica, also commonly occur in the short-shrub stratum. The dwarf-shrub layer is particularly sparse, although Porophyllum gracile and Opuntia basilaris commonly occur. Graminoid cover is similarly sparse; Aristida purpurea is common. Forbs are also poorly-represented and composition varies considerably.
Dynamics: No Data Available
Environmental Description: This sweetbush shrubland occurs in low-level drainage channels and along benches and terraces just above these dry washes. It typically occurs at 425 to 875 m (1400-2975 feet) elevation, on gentle gradients (up to 8°), and favors south- and west-facing aspects. Soils are sandy and rapidly-drained. Rocks, gravel, and sand are major components of the ground cover, while a notable amount of cryptogamic soil crust occurs in many stands.
Geographic Range: This association occurs in northern Arizona and southeastern California. More survey work is needed to fully document its global range.
Nations: US
States/Provinces: AZ, CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.841783
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.A Warm Desert & Semi-Desert Woodland, Scrub & Grassland Subclass | S06 | 3.A |
| Formation | 3.A.2 Warm Desert & Semi-Desert Scrub & Grassland Formation | F015 | 3.A.2 |
| Division | 3.A.2.Na North American Warm Desert Scrub & Grassland Division | D039 | 3.A.2.Na |
| Macrogroup | 3.A.2.Na.7 North American Warm-Desert Xeric-Riparian Scrub Macrogroup | M092 | 3.A.2.Na.7 |
| Group | 3.A.2.Na.7.a Desert-willow - Apache Plume - Desert Almond Desert Wash & Colluvial Slope Group | G541 | 3.A.2.Na.7.a |
| Alliance | A4188 Burrobrush - Sweetbush Mojave-Sonoran Desert Wash Scrub Alliance | A4188 | 3.A.2.Na.7.a |
| Association | CEGL005391 Sweetbush Shrubland | CEGL005391 | 3.A.2.Na.7.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Bebbia juncea-(Hymenoclea salsola) Association (Evens et al. 2014)
= Bebbia juncea Shrubland (Reid and Hall 2010)
= Bebbia juncea Shrubland (Reid and Hall 2010)
- 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.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.