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CEGL001122 Rhus glabra / Pseudoroegneria spicata Shrub Grassland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Smooth Sumac / Bluebunch Wheatgrass Shrub Grassland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association occurs on foot and toeslopes between 435-900 m elevation in southeastern Washington, Oregon and Idaho. Stands are found on southeast- and southwest-facing slopes. This type is most common on talus slopes between 10-75%. The climate is very dry and continental, with hot summers and mild winters. Rhus glabra is the sole to dominant shrub, averaging 35% cover. In late successional stands the Rhus glabra tends to occur as patches with grasses growing in the openings. Pseudoroegneria spicata is the dominant grass in all stands averaging 28% cover. Bromus tectorum is often present, though its cover seldom exceeds 4%. Other grasses and forbs add about an additional 10% to the cover of the herbaceous layer.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association is reported to have 35% shrub cover which is enough to be classified as a shrubland. Review of stand data is needed to determine if the type should be reclassified as a shrubland.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Rhus glabra is the sole to dominant shrub, averaging 35% cover. In late successional stands the Rhus glabra tends to occur as patches with grasses growing in the openings. Pseudoroegneria spicata is the dominant grass in all stands averaging 28% cover. Bromus tectorum is often present, though its cover seldom exceeds 4%. Other grasses and forbs add about an additional 10% to the cover of the herbaceous layer.
Dynamics: No Data Available
Environmental Description: This association occurs on foot and toeslopes between 435-900 m elevation in southeastern Washington, Oregon and Idaho. Stands are found on southeast- and southwest-facing slopes. This type is most common on talus slopes between 10-75%. The climate is very dry and continental, with hot summers and mild winters.
Geographic Range: Columbia Basin of Washington and adjacent Idaho and Oregon in the Snake canyons; outliers in Spokane vicinity. Scattered throughout Columbia Basin of Washington most abundantly in Snake Canyon and Okanogan Valley.
Nations: US
States/Provinces: ID, OR, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688318
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G2
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 2 Shrub & Herb Vegetation Class | C02 | 2 |
| Subclass | 2.B Temperate & Boreal Grassland & Shrubland Subclass | S18 | 2.B |
| Formation | 2.B.2 Temperate Grassland & Shrubland Formation | F012 | 2.B.2 |
| Division | 2.B.2.Nf Western North American Grassland & Shrubland Division | D022 | 2.B.2.Nf |
| Macrogroup | 2.B.2.Nf.2 Saskatoon Serviceberry / Idaho Fescue - Bluebunch Wheatgrass Grassland & Shrubland Macrogroup | M048 | 2.B.2.Nf.2 |
| Group | 2.B.2.Nf.2.b Saskatoon Serviceberry - Snowberry species - Smooth Sumac Central Rocky Mountain Shrubland Group | G272 | 2.B.2.Nf.2.b |
| Alliance | A3964 Smooth Sumac - Skunkbush Sumac Central Rocky Mountain Montane-Foothill Shrubland Alliance | A3964 | 2.B.2.Nf.2.b |
| Association | CEGL001122 Smooth Sumac / Bluebunch Wheatgrass Shrub Grassland | CEGL001122 | 2.B.2.Nf.2.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Rhus glabra association (Crawford 2003) [3 plots]
= Smooth Sumac / Bluebunch Wheatgrass Shrub Plant Association (Johnson and Simon 1987)
= Smooth Sumac / Bluebunch Wheatgrass Shrub Plant Association (Johnson and Simon 1987)
- Bourgeron, P. S., and L. D. Engelking, editors. 1994. A preliminary vegetation classification of the western United States. Unpublished report. The Nature Conservancy, Western Heritage Task Force, Boulder, CO. 175 pp. plus appendix.
- Crawford, R. C. 2003. Riparian vegetation classification of the Columbia Basin, Washington. Natural Heritage Report 2003-03. Washington Natural Heritage Program, Washington Department of Natural Resources, Olympia. 98 pp. plus appendices.
- Daubenmire, R. F. 1970. Steppe vegetation of Washington. Washington State University Agricultural Experiment Station Technical Bulletin No. 62. 131 pp.
- IDCDC [Idaho Conservation Data Center]. No date. Unpublished data on file at Idaho Conservation Data Center, Department of Fish and Game, Boise, ID.
- Johnson, C. G., Jr., and S. A. Simon. 1987. Plant associations of the Wallowa-Snake Province Wallowa-Whitman National Forest. Technical Paper R6-ECOL-TP-255A-86. USDA Forest Service, Pacific Northwest Region, Wallowa-Whitman National Forest. 399 pp. plus appendices.
- Johnston, B. C. 1987. Plant associations of Region Two: Potential plant communities of Wyoming, South Dakota, Nebraska, Colorado, and Kansas. R2-ECOL-87-2. USDA Forest Service, Rocky Mountain Region. Lakewood, CO. 429 pp.
- Kagan, J. S., J. A. Christy, M. P. Murray, and J. A. Titus. 2004. Classification of native vegetation of Oregon. January 2004. Oregon Natural Heritage Information Center, Portland. 52 pp.
- Tisdale, E. W. 1986. Canyon grasslands and associated shrublands of west-central Idaho and adjacent areas. Bulletin No. 40. Forest, Wildlife and Range Experiment Station, University of Idaho, Moscow. 42 pp.
- WNHP [Washington Natural Heritage Program]. 2018. Unpublished data files. Washington Natural Heritage Program, Department of Natural Resources, Olympia, WA.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.