Print Report

CEGL005398 Hymenoclea salsola Wash Shrubland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Burrobrush Wash Shrubland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This association is currently only described from Grand Canyon. Additional global information will be added as it becomes available. This association is known from Grand Canyon-Parashant National Monument, where it was sampled from the Grand Wash Bay area and Pigeon Wash, as well as from the Whitmore Canyon area. This burrobrush shrubland association predominantly occurs in the bottom of drainage channels and desert washes from approximately 400 to 570 m (1300-1900 feet) elevation, typically in flat to very low-gradient (1-3 degrees) washes that generally flow south. Soils are well-drained and usually sandy, but occasionally contain silt, clay, and loam. The underlying geology is typically obscured by soil. Gravel and rocks, as well as sand and some bare soil, are common components of the ground cover. Total shrub cover typically averages 10-15 % in this association. The scattered tall shrub Acacia greggii punctuates stands; however, a short-shrub layer dominated by Hymenoclea salsola characterizes this association. The short shrubs Larrea tridentata, Psorothamnus fremontii, and Ericameria paniculata are also commonly present. The low-growing cactus Opuntia basilaris, while usually occurring in only trace amounts, is frequently seen in the dwarf-shrub layer. A very sparse graminoid layer exists in which Bromus rubens and Vulpia octoflora occur most frequently. Notable forbs include Antheropeas lanosum, Chamaesyce polycarpa, Cryptantha spp., and the exotic Erodium cicutarium, all of which occur occasionally at low cover. Based upon the 7 stands sampled, this association hosts below-average species diversity among Grand Canyon plant communities, with 14 species per 400-square-meter plot.

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 desert wash shrubland is known from Arizona and California.

Nations: US

States/Provinces:  AZ, CA




Confidence Level: Low - Poorly Documented

Confidence Level Comments: No Data Available

Grank: GNR

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Ambrosia salsola (= Hymenoclea salsola) Shrubland Association (Evens et al. 2012)
= Ambrosia salsola (Sawyer et al. 2009) [33.200.01]
= Hymenoclea salsola (Keeler-Wolf et al. 1998a)
= Hymenoclea salsola Association (Evens et al. 2014)
= Hymenoclea salsola Wash Shrubland (Reid and Hall 2010)

Concept Author(s): M.S. Reid and M.E. Hall (2010)

Author of Description: R. Meszaros

Acknowledgements: No Data Available

Version Date: 07-19-18

  • 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.
  • 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., C. Roye, and K. Lewis. 1998a. Vegetation mapping and classification of the Anza-Borrego Desert State Park, California. Unpublished report on file at California Natural Diversity Database, California Department 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.