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CEGL005742 Chilopsis linearis / (Ambrosia eriocentra, Salvia dorrii) Desert Wash Scrub
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Desert-willow / (Woolly-fruit Bur-ragweed, Purple Sage) Desert Wash Scrub
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association occurs along intermittently flooded drainages in the Mojave Desert in California and Nevada. Chilopsis linearis is dominant and characteristic in the sparse to open tree overstory (2-19% cover). Other trees such as Yucca brevifolia may be present. The sparse to open shrub layer is variable and ranges from 2 to 23% cover. Ambrosia eriocentra and/or Salvia dorrii are dominant or codominant. A variety of other wash-associated shrubs may be present. Herb cover is also variable and ranges from 1 to 15% and commonly includes Bromus rubens, Erodium cicutarium, Penstemon palmeri, and Sphaeralcea ambigua. Stands are found at mid to upper elevations along intermittently flooded channel beds within arroyos and lowslope canyon drainages, and occasionally on slope/summit canyon drainages. Sites occur on gentle to moderate slopes (to 6°) between 700 and 1550 m elevation with no aspect preference. Soils are rapidly drained, loamy sand and sand derived from alluvium from a variety of substrates such as alkali-granite, granodiorite, limestone, 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: This open scrub is dominated by characteristic tree Chilopsis linearis in the sparse to open tree overstory (2-19% cover). Other trees such as Yucca brevifolia may be present. The sparse to open shrub layer is variable and ranges from 2-23% cover (Evens et al. 2014). Ambrosia eriocentra and/or Salvia dorrii are dominant or codominant. A variety of other wash-associated shrubs may be present, including Acacia greggii, Cylindropuntia acanthocarpa, Encelia virginensis, Fallugia paradoxa, Gutierrezia microcephala, Hymenoclea salsola, Prunus fasciculata, and Salazaria mexicana (Evens et al. 2014). Herb cover is also variable, ranging from 1 to 15%, and commonly includes Penstemon palmeri, Sphaeralcea ambigua, and exotics Bromus rubens and Erodium cicutarium.
Dynamics: No Data Available
Environmental Description: This association occurs along intermittently flooded drainages in the Mojave Desert in California and Nevada. Stands are found at mid to upper elevations along intermittently flooded channel beds within arroyos and lowslope canyon drainages, and occasionally on slope/summit canyon drainages (Evens et al. 2014). Sites occur on gentle to moderate slopes (to 6°) between 700 and 1550 m elevations with no aspect preference (Evens et al. 2014). Soils are rapidly drained, loamy sand and sand derived from alluvium from a variety of substrates such as alkali-granite, granodiorite, limestone, and sandstone (Evens et al. 2014).
Geographic Range: This association occurs along intermittently flooded channels in the Mojave Desert in southeastern California and southern Nevada.
Nations: US
States/Provinces: CA, NV
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.971576
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.7 North American Warm-Desert Xeric-Riparian Scrub Macrogroup | M092 | 3.A.2.Na.7 |
| Group | 3.A.2.Na.7.a Desert-willow - Apache Plume - Desert Almond Desert Wash & Colluvial Slope Group | G541 | 3.A.2.Na.7.a |
| Alliance | A1044 Desert-willow - Smoketree Desert Wash Scrub Alliance | A1044 | 3.A.2.Na.7.a |
| Association | CEGL005742 Desert-willow / (Woolly-fruit Bur-ragweed, Purple Sage) Desert Wash Scrub | CEGL005742 | 3.A.2.Na.7.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Chilopsis linearis / (Ambrosia eriocentra-Salvia dorrii) Association (Evens et al. 2014)
? Chilopsis linearis / Salvia dorrii (Sawyer et al. 2009) [61.550.05]
= Chilopsis linearis/Salvia dorrii Association (Evens 2000)
< Chilopsis-Chrysothamnus Wash Woodland (Spolsky 1979)
? Chilopsis linearis / Salvia dorrii (Sawyer et al. 2009) [61.550.05]
= Chilopsis linearis/Salvia dorrii Association (Evens 2000)
< Chilopsis-Chrysothamnus Wash Woodland (Spolsky 1979)
- Evens, J. M. 2000. Water course vegetation on granite and calcareous substrates in the eastern Mojave Desert, California. Master''s thesis, Humboldt State University, Arcata, 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.
- 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.
- Spolsky, A. M. 1979. An overview of the plant communities of Anza Borrego Desert State Park. Unpublished report. State of California, The Resource Agency, Department of Parks and Recreation , Anza-Borrego Desert State Park, Borrego Springs, CA.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.