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CEGL005780 Yucca schidigera - Coleogyne ramosissima Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Mojave Yucca - Blackbrush 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 (13-32% cover) codominated by Yucca schidigera and Coleogyne ramosissima with Cylindropuntia acanthocarpa, Echinocereus engelmannii, Eriogonum fasciculatum, Krameria erecta, and Viguiera parishii being characteristically present. Additional shrubs are often present. Occasional emergent Pinus monophylla or Yucca brevifolia trees are sometimes present. If present, the herbaceous layer is typically open and ranges to 17% cover with native grasses and forbs that include Pleuraphis rigida, Adenophyllum porophylloides, Xylorhiza tortifolia, and exotic annuals Bromus rubens and Erodium cicutarium. Stands occur on gravelly to cobbly upper bajadas, rolling hillslopes and ridges with bedrock outcrops, and along erosional highlands from 1000-1550 m elevation. Sites are on gentle to steep slopes on a variety of aspects. Soils usually range from clay loams to sandy loams, and are derived from a variety of substrates, such as alluvium, gneiss, and limestone.
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 (13-32% cover) codominated by Yucca schidigera and Coleogyne ramosissima with Cylindropuntia acanthocarpa, Echinocereus engelmannii, Eriogonum fasciculatum, Krameria erecta, and Viguiera parishii being characteristically present (Evens et al. 2012, 2014). Other shrubs often present include Acacia greggii, Encelia actonii, Ephedra nevadensis, Ericameria cooperi, Escobaria vivipara, Ferocactus cylindraceus, Hymenoclea salsola, Krameria grayi, Larrea tridentata, Lycium andersonii, Opuntia basilaris, Salazaria mexicana, and Thamnosma montana (Evens et al. 2012, 2014). Occasional emergent Pinus monophylla or Yucca brevifolia trees are sometimes present with <0.5% cover. If present, the herbaceous layer is typically open, ranging up to 17% cover. Commonly associated native grasses and forbs include Achnatherum speciosum, Adenophyllum porophylloides, Chamaesyce sp., Eriogonum inflatum, Galium stellatum, Pleuraphis rigida, Stephanomeria pauciflora, Xylorhiza tortifolia, and exotic annuals include Bromus rubens and Erodium cicutarium (Evens et al. 2012, 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 on gravelly to cobbly upper bajadas, rolling hillslopes and ridges with bedrock outcrops, and along erosional highlands from 1000-1550 m elevation (Evens et al. 2012, 2014). Sites are on gentle to steep slopes (3 to 32°) on a variety of aspects (Evens et al. 2012, 2014). Soils usually range from clay loams to sandy loams, and are derived from a variety of substrates, such as alluvium, gneiss, and limestone (Evens et al. 2012, 2014).
Geographic Range: This desert scrub association is found scattered across the central and southern Mojave Desert and was sampled in Joshua Tree National Park and Mojave National Preserve in California.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.971783
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 | CEGL005780 Mojave Yucca - Blackbrush Shrubland | CEGL005780 | 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 - Coleogyne ramosissima (Sawyer et al. 2009) [33.070.04]
= Yucca schidigera - Coleogyne ramosissima Association (Evens et al. 2014)
= Yucca schidigera - Coleogyne ramosissima Association (Evens et al. 2012)
= Yucca schidigera-Coleogyne ramosissima (Keeler-Wolf and Thomas 2000)
= Yucca schidigera - Coleogyne ramosissima Association (Evens et al. 2014)
= Yucca schidigera - Coleogyne ramosissima Association (Evens et al. 2012)
= Yucca schidigera-Coleogyne ramosissima (Keeler-Wolf and Thomas 2000)
- 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.
- 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.