Invalid Unit Specified
CEGL002706 Ericameria paniculata Desert Wash Shrubland

The U.S. National
Vegetation Classification
Type Concept Sentence:
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Common (Translated Scientific) Name: Mojave Rabbitbrush Desert Wash Shrubland
Colloquial Name: Mojave Rabbitbrush Desert Wash
Hierarchy Level: Association
Type Concept: This Mojave rabbitbrush shrubland association occurs in northern Arizona, southeastern California and southern Nevada. It is currently described from Grand Canyon-Parashant National Monument in Arizona. It is also reported from California and Nevada. More survey and classification work are needed to fully characterize this type. It predominantly occurs in desert washes and drainage channels from approximately 375 to 650 m (1225-2150 feet) elevation, but can occasionally occur at higher elevations (1100-1200 m). It typically occurs in flat to very low-sloping (1-4°), mostly south-flowing drainages. Soils are rapidly-drained and composed mostly of sand, but also occasionally contain loam or silt. This association is characteristically sparse. Ericameria paniculata characterizes the association and can occur as either a tall or short shrub. In the short-shrub layer Larrea tridentata and Hymenoclea salsola, and occasionally Ambrosia dumosa and Psorothamnus fremontii may occur. A sparse dwarf-shrub layer occurs, but no species are consistent from site to site. This association supports a very sparse graminoid layer that is not dominated by any particular species. The graminoids Bromus rubens and Vulpia octoflora occur frequently but typically at low cover. Chamaesyce polycarpa, Eriogonum inflatum, Erodium cicutarium, Plantago ovata, Cryptantha sp., Gilia sp., and Sphaeralcea ambigua may be present in the sparse forb layer.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features:
Classification Comments: No Data Available
Similar NVC Types:
Physiognomy and Structure: No Data Available
Floristics:
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: This association occurs in northern Arizona, southeastern California and southern Nevada. More survey work is needed to fully document its global range.
Nations: US
States/Provinces: AZ, CA, NV
US Forest Service Ecoregions (1994/1995)
Domain Name:
Division Name:
Province Name: Colorado Plateau Semi-Desert Province
Province Code: 313    Occurrence Status: Confident or certain
Section Name: Sonoran Desert Section
Section Code: 322B     Occurrence Status: Confident or certain
US Forest Service Ecoregions (2007)
Domain Name:
Division Name:
Province Name: Intermountain Semi-Desert and Desert Province
Province Code: 341    Occurrence Status: Confident or certain
Section Name: Southeastern Great Basin Section
Section Code: 341F     Occurrence Status: Confident or certain
Omernik Ecoregions:
Confidence Level: Low
Confidence Level Comments:
Grank: G4G5
Greasons:
Concept Lineage:
Predecessors:
Obsolete Names:
Obsolete Parents:
Synonomy: < Ericameria paniculata (= Chrysothamnus paniculatus) Shrubland Alliance (Evens et al. 2012) [No Hymenoclea salsola listed in plots.]
? Ericameria paniculata (Sawyer et al. 2009) [35.340.01]
= Ericameria paniculata Association (Evens 2000)
< Ericameria paniculata Shrubland Alliance (Keeler-Wolf and Thomas 2000)
= Ericameria paniculata Wash Association (Evens et al. 2014)
= Ericameria paniculata Wash Shrubland (Keeler-Wolf 1997)
= Ericameria paniculata Wash Shrubland (Reid and Hall 2010)
Concept Author(s): T. Keeler-Wolf
Author of Description: R. Meszaros
Acknowledgements:
Version Date: 06Jan2017
References:
  • Evens, J. M. 2000. Water course vegetation on granite and calcareous substrates in the eastern Mojave Desert, California. Master's thesis, Humboldt State University, Arcata, CA.
  • Evens, J. M., D. Roach-McIntosh, and D. Stout. 2012. Vegetation descriptions for Joshua Tree National Park. Unpublished report submitted to USDI, National Park Service, Mojave Desert Inventory and Monitoring Network. California Native Plant Society, Sacramento, CA.
  • 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. [http://science.nature.nps.gov/im/units/MOJN/rpts_pubs/rpts_pubs_main.cfm]
  • 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.
  • Keeler-Wolf, T. 1997. Preliminary table of Mojave Desert ecosystem vegetation types.
  • Keeler-Wolf, T., and K. Thomas. 2000. Draft descriptions of vegetation alliances for the Mojave Ecosystem Mapping project. California Natural Diversity Database, California Department of Fish and Game, Sacramento.
  • 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.
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.