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CEGL002985 Artemisia arbuscula ssp. longicaulis / Bromus tectorum Ruderal Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Lahontan Sagebrush / Cheatgrass Ruderal Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This shrubland association is a severely degraded form of potentially several associations within the alliance. It is characterized by a shrub layer dominated by Artemisia arbuscula ssp. longicaulis and a graminoid layer completely converted to Bromus tectorum, such that the perennial grasses that may once have dominated the graminoid layer can no longer be determined from what little remains (in some cases the perennial grass may be determined by modeling). This shrubland has been observed covering large areas of alluvial fans coming out of the Virginia Range on the east side of Reno, Nevada. Even in the degraded shrubland where this has been observed, mosses have substantial ground cover under and immediately surrounding many of the shrubs.
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 a shrub layer dominated by Artemisia arbuscula ssp. longicaulis and a graminoid layer completely converted to Bromus tectorum, such that the perennial grasses that may once have dominated the graminoid layer can no longer be determined from what little remains (in some cases the perennial grass may be determined by modeling). Even in the degraded shrubland where this has been observed, mosses have substantial ground cover under and immediately surrounding many of the shrubs.
Dynamics: No Data Available
Environmental Description: This shrubland covers large areas of alluvial fans coming out of the Virginia Range, Nevada.
Geographic Range: It has been observed on alluvial fans coming out of the Virginia Range on the east side of Reno, Nevada.
Nations: US
States/Provinces: CA?, NV, OR?
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.685957
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: GNA
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.90 Crested Wheatgrass - Cheatgrass - Tall Tumblemustard Western North American Ruderal Semi-Desert Scrub & Grassland Macrogroup | M499 | 3.B.1.Ne.90 |
| Group | 3.B.1.Ne.90.a Great Basin-Intermountain Ruderal Dry Shrubland & Grassland Group | G600 | 3.B.1.Ne.90.a |
| Alliance | A4213 Sagebrush species - Mixed Shrub Ruderal Understory Shrubland Alliance | A4213 | 3.B.1.Ne.90.a |
| Association | CEGL002985 Lahontan Sagebrush / Cheatgrass Ruderal Shrubland | CEGL002985 | 3.B.1.Ne.90.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: < Artemisia arbuscula ssp. longicaulis (Lahontan sagebrush scrub) Provisional Alliance (Sawyer et al. 2009) [35.121.00]
- Peterson, E. B. 2008. International Vegetation Classification alliances and associations occurring in Nevada with proposed additions. Nevada Natural Heritage Program, Carson City, NV. 348 pp.
- Peterson, Eric. Personal communication. Plant Ecologist, Nevada Natural Heritage Program, Department of Conservation and Natural Resources, Carson City, NV.
- 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.
- Winward, A. H., and E. D. McArthur. 1995. Lahontan sagebrush (Artemisia arbuscula ssp. longicaulis): A new taxon. Great Basin Naturalist 55(2):151-157.