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CEGL005758 Larrea tridentata - Ambrosia dumosa - Atriplex hymenelytra Desert Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Creosotebush - Burrobush - Desert-holly Desert Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This scrub association is found at low to mid elevations in the Mojave Desert and southern Great Basin in Arizona, California and southern Nevada. Vegetation is characterized by an open to moderate shrub canopy (3-23% cover) codominated by Ambrosia dumosa and Larrea tridentata with Atriplex hymenelytra characteristically present to codominant. If present, the herbaceous layer is variable, ranging from sparse to open (to 16% cover) with native annual forb Eriogonum inflatum characteristic. It occurs on variable slope positions ranging from 100 to 1050 m elevation. Sites occur on gentle to steep slopes on variable aspects. Soils are variable and are derived from a variety of substrates such as alluvium, conglomerate, gravel, plutonic rock (phaneritic), and sandstone.
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: Vegetation is characterized by an open to moderate shrub canopy (3-23% cover) codominated by Ambrosia dumosa and Larrea tridentata with Atriplex hymenelytra characteristically present to codominant (Evens et al. 2014). If present, the herbaceous layer is variable, ranging from sparse to open (to 16% cover) with native annual forb Eriogonum inflatum characteristic (Evens et al. 2014).
Dynamics: No Data Available
Environmental Description: This scrub association is found at low to mid elevations in the Mojave Desert and southern Great Basin in Arizona, California and southern Nevada. It occurs on variable slope positions ranging from 100-1050 m elevation (Evens et al. 2014). Sites occur on gentle to steep slopes (to 40°) on variable aspects (Evens et al. 2014). Soils are variable and are derived from a variety of substrates such as alluvium, conglomerate, gravel, plutonic rock (phaneritic), and sandstone (Evens et al. 2014).
Geographic Range: This scrub association is found in the Mojave Desert and southern Great Basin. It was sampled in Lake Mead National Recreation Area in Arizona and Nevada, and Death Valley National Park in California.
Nations: US
States/Provinces: AZ, CA, NV
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.971706
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.4 Saguaro - Organ Pipe Cactus - Burrobush Mojave-Sonoran Semi-Desert Scrub Macrogroup | M088 | 3.A.2.Na.4 |
| Group | 3.A.2.Na.4.b Creosotebush - Burrobush - Brittlebush Desert Scrub Group | G295 | 3.A.2.Na.4.b |
| Alliance | A3277 Creosotebush - Burrobush Bajada & Valley Desert Scrub Alliance | A3277 | 3.A.2.Na.4.b |
| Association | CEGL005758 Creosotebush - Burrobush - Desert-holly Desert Shrubland | CEGL005758 | 3.A.2.Na.4.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Larrea tridentata - Ambrosia dumosa - / Atriplex hymenelytra (Sawyer et al. 2009) [33.140.09]
= Larrea tridentata-Ambrosia dumosa-Atriplex hymenelytra Association (Evens et al. 2014)
= Larrea tridentata-Ambrosia dumosa-Atriplex hymenelytra Association (Keeler-Wolf and Thomas 2000)
< Larrea tridentata-Ambrosia dumosa Alliance (Keeler-Wolf and Thomas 2000)
= Larrea tridentata-Ambrosia dumosa-Atriplex hymenelytra Association (Evens et al. 2014)
= Larrea tridentata-Ambrosia dumosa-Atriplex hymenelytra Association (Keeler-Wolf and Thomas 2000)
< Larrea tridentata-Ambrosia dumosa Alliance (Keeler-Wolf and Thomas 2000)
- 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., 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.
- 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.