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CEGL005746 Coleogyne ramosissima - Lycium andersonii Mojave Desert Shrubland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Blackbrush - Water Jacket Desert Shrubland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This shrubland association is found at mid to upper elevations in the Mojave Desert and southern Great Basin in California. The vegetation is characterized by an open to patchy shrub canopy (5-31% cover) codominated by Coleogyne ramosissima, Ephedra nevadensis, and Lycium andersonii. Other shrubs are often present, including Acamptopappus shockleyi, Eriogonum fasciculatum, Grayia spinosa, and Psorothamnus polydenius. Occasional emergent Yucca brevifolia trees are sometimes present. If present, the herbaceous layer is sparse to open and composed of a mixture of grasses and forbs such as Achnatherum speciosum, Eriogonum inflatum, Sphaeralcea ambigua, and Xylorhiza tortifolia, and exotic annuals Bromus rubens and Erodium cicutarium. Stands occur on a variety of slope positions at 1125-1830 m elevation. Sites are found on gentle to steep slopes on variable aspects. Soils are generally loamy, ranging from sandy loam to clayey loam. Soils are derived primarily from sandstone, but may include a variety of other substrates.

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: The vegetation is characterized by an open to patchy shrub canopy (5-31% cover) codominated by Coleogyne ramosissima, Ephedra nevadensis, and Lycium andersonii (Evens et al. 2014). Other shrubs are often present, including Acamptopappus shockleyi, Eriogonum fasciculatum, Grayia spinosa, and Psorothamnus polydenius (Evens et al. 2014). Occasional emergent Yucca brevifolia trees are sometimes present (Evens et al. 2014). If present, the herbaceous layer is sparse to open (to 24% cover) and composed of a mixture of grasses and forbs such as Achnatherum speciosum, Eriogonum inflatum, Sphaeralcea ambigua, and Xylorhiza tortifolia, and exotic annuals Bromus rubens and Erodium cicutarium (Evens et al. 2014).

Dynamics:  No Data Available

Environmental Description:  This shrubland association is found at mid to upper elevations in the Mojave Desert and southern Great Basin in California. It occurs on a variety of slope positions at 1125-1830 m elevation (Evens et al. 2014). Sites are found on gentle to steep slopes (to 29°) on variable aspects. Soils are generally loamy, ranging from sandy loam to clayey loam. Soils are derived primarily from sandstone, but may include a variety of substrates (Evens et al. 2014).

Geographic Range: This shrubland association is found at mid to upper elevations in the Mojave Desert and southern Great Basin and was sampled in Death Valley National Park in California.

Nations: US

States/Provinces:  CA




Confidence Level: Low

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: = Coleogyne ramosissima - Lycium andersonii (Sawyer et al. 2009) [33.020.08]
= Coleogyne ramosissima-Lycium andersonii Association (Keeler-Wolf and Thomas 2000)
= Coleogyne ramosissima-Lycium andersonii Association (Evens et al. 2014)
< Coleogyne ramosissima Shrubland Alliance (Keeler-Wolf and Thomas 2000)

Concept Author(s): Evens et al. (2014)

Author of Description: K.A. Schulz

Acknowledgements: No Data Available

Version Date: 11-28-16

  • 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.
  • 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.
  • 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.