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CEGL005781 Yucca schidigera - Eriogonum fasciculatum Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Mojave Yucca - Eastern Mojave Buckwheat Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This desert scrub association is found at mid to upper elevations in Mojave Desert in California. It is characterized by an open to moderately dense shrub canopy (13-41% cover) codominated by Yucca schidigera and Eriogonum fasciculatum with Acacia greggii, Cylindropuntia acanthocarpa, and Ephedra nevadensis being characteristically present. Many other shrubs are often present. Occasional emergent Yucca brevifolia, Juniperus californica, or Pinus monophylla trees are sometimes present. If present, the herbaceous layer is typically open and composed of native grasses and forbs, including Achnatherum speciosum, Amsinckia spp., Sphaeralcea ambigua, and exotic annuals Bromus rubens and Erodium cicutarium. Stands occur primarily on rolling, low to midslopes to steeper bedrock exposed ridges at 900-1850 m elevation. Sites have gentle to steep slopes (to 29°) with easterly to southwesterly aspects. Soils are loamy (sandy to clayey loams) and are derived from a variety of substrates, usually granodiorite, rhyolite, alkali-granite (alaskite), alluvium, or gneiss.
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 moderately dense shrub canopy (13-41% cover) codominated by Yucca schidigera and Eriogonum fasciculatum with Acacia greggii, Cylindropuntia acanthocarpa, and Ephedra nevadensis being characteristically present (Evens et al. 2014). Other shrubs often present include Echinocereus engelmannii, Ferocactus cylindraceus, Krameria erecta, Larrea tridentata, Salazaria mexicana, Stephanomeria pauciflora, and Viguiera parishii (Evens et al. 2014). Occasional emergent Yucca brevifolia, Juniperus californica, or Pinus monophylla trees are sometimes present (Evens et al. 2014). If present, the herbaceous layer is typically open, ranging up to 19% cover. Commonly associated native grasses and forbs include Achnatherum speciosum, Amsinckia spp., Sphaeralcea ambigua, and exotic annuals include Bromus rubens and Erodium cicutarium (Evens et al. 2014).
Dynamics: No Data Available
Environmental Description: This desert scrub association is found at mid to upper elevations in Mojave Desert in California. Stands occur primarily on rolling, low to midslopes to steeper bedrock exposed ridges at 900-1850 m elevation (Evens et al. 2014). Sites have gentle to steep slopes (to 29°) with easterly to southwesterly aspects. Soils are loamy (sandy to clayey loams) and are derived from a variety of substrates, usually granodiorite, rhyolite, alkali-granite (alaskite), alluvium, or gneiss (Evens et al. 2014).
Geographic Range: This association is found in the central to eastern Mojave Desert in California and southern Nevada at mid to upper elevations in the Mojave National Preserve and in the Newberry Mountains of Lake Mead National Recreation Area.
Nations: US
States/Provinces: CA, NV
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.971786
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.B Cool Semi-Desert Scrub & Grassland Subclass | S11 | 3.B |
| Formation | 3.B.1 Cool Semi-Desert Scrub & Grassland Formation | F033 | 3.B.1 |
| Division | 3.B.1.Ne Western North American Cool Semi-Desert Scrub & Grassland Division | D040 | 3.B.1.Ne |
| Macrogroup | 3.B.1.Ne.1 Yellow Rabbitbrush - Blackbrush / Indian Ricegrass Dry Shrubland & Grassland Macrogroup | M171 | 3.B.1.Ne.1 |
| Group | 3.B.1.Ne.1.a Joshua Tree - Eastern Mojave Buckwheat - Rough Joint-fir Mixed Desert Scrub Group | G296 | 3.B.1.Ne.1.a |
| Alliance | A3147 Mojave Yucca Scrub Alliance | A3147 | 3.B.1.Ne.1.a |
| Association | CEGL005781 Mojave Yucca - Eastern Mojave Buckwheat Shrubland | CEGL005781 | 3.B.1.Ne.1.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Yucca schidigera - Eriogonum fasciculatum (Sawyer et al. 2009) [33.070.07]
= Yucca schidigera - Eriogonum fasciculatum Association (Evens et al. 2014)
= Yucca schidigera-Eriogonum fasciculatum (Keeler-Wolf and Thomas 2000)
< Yucca schidigera Shrubland Alliance (Keeler-Wolf and Thomas 2000)
= Yucca schidigera - Eriogonum fasciculatum Association (Evens et al. 2014)
= Yucca schidigera-Eriogonum fasciculatum (Keeler-Wolf and Thomas 2000)
< Yucca schidigera Shrubland 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., 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.