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CEGL001351 Grayia spinosa / Poa secunda Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Spiny Hopsage / Sandberg Bluegrass Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This community occurs in the driest and hottest part of central Washington. It is an open shrubland community with a sparse and species-poor herbaceous layer. Grayia spinosa is often the only shrub, although it can be codominant with Artemisia tridentata on disturbed and transitional sites. Poa secunda is the dominant grass (20-40% cover typically) and frequently is the only perennial grass. Forb diversity is low. Least disturbed sites have a soil moss and lichen crust and few annuals. Disturbed sites have little or no moss/lichen cover and an abundance of exotic annuals such as Bromus tectorum.
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 shrubland community has a sparse and species-poor herbaceous layer. Grayia spinosa is often the only shrub, although it can be codominant with Artemisia tridentata on disturbed and transitional sites. Poa secunda is the dominant grass (20-40% cover typically) and frequently is the only perennial grass. Forb diversity is low. Least disturbed sites have a soil moss and lichen crust and few annuals. Disturbed sites have little or no moss/lichen cover and an abundance of exotic annuals such as Bromus tectorum.
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: Most of the possible occurrences would be along 80 km (50 miles) of the Hanford Reach in Benton County, Washington, approximately 23,300 ha (90 square miles).
Nations: US
States/Provinces: WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.689640
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G1
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.5 Shadscale Saltbush - Fourwing Saltbush - Mat Saltbush Great Basin Scrub Macrogroup | M093 | 3.B.1.Ne.5 |
| Group | 3.B.1.Ne.5.b Shadscale Saltbush - Fourwing Saltbush - Spiny Hopsage Scrub Group | G300 | 3.B.1.Ne.5.b |
| Alliance | A3171 Spiny Hopsage Scrub Alliance | A3171 | 3.B.1.Ne.5.b |
| Association | CEGL001351 Spiny Hopsage / Sandberg Bluegrass Shrubland | CEGL001351 | 3.B.1.Ne.5.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Grayia spinosa / Poa secunda Habitat Type (Daubenmire 1970)
- 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.
- Daubenmire, R. F. 1970. Steppe vegetation of Washington. Washington State University Agricultural Experiment Station Technical Bulletin No. 62. 131 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.