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CEGL005613 Purshia tridentata / Leymus cinereus Shrub Grassland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Antelope Bitterbrush / Basin Wildrye Shrub Grassland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: Purshia tridentata forms a low and relatively open shrub canopy in this shrub herbaceous vegetation type. Several other shrub species are commonly present as scattered individuals; the most frequent of which is Artemisia tridentata ssp. vaseyana. Herbaceous cover generally equals or exceeds that of the shrub stratum. The perennial bunchgrass Leymus cinereus dominates the herbaceous layer, with a growth form of large clumps up to 1 m across. Other grasses are often present and include Bromus tectorum and Poa secunda. Common forbs include Collinsia parviflora, Crepis acuminata, Delphinium andersonii, Eriogonum umbellatum, Lomatium dissectum, and Phacelia hastata. This association, like all associations in ~Inter-Mountain Basins Volcanic Rock and Cinder Land (CES304.791)$$, is limited to barren and sparsely vegetated volcanic substrates of basalt and basaltic andesite origin, including tuffs, cinder cones, spatter cones, pressure plateaus, or cinder fields. It may occur in large-patch, small-patch or linear spatial patterns.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This plant community description is based on data from Craters of the Moon (Bell et al. 2009) and on related plant communities that have been previously described. The description provided herein may vary slightly from similar plant communities found elsewhere due to the local scale at which data were collected. Additional global information will be added as it becomes available.
This narrowly endemic plant association occurs on medium-aged and older cinder cones of the Great Rift System, on the northern Snake River Plain, Idaho. Several of the known stands of the plant association occur within Craters of the Moon National Monument and Preserve. Most stands are believed to be in a stable, high-quality condition.
This narrowly endemic plant association occurs on medium-aged and older cinder cones of the Great Rift System, on the northern Snake River Plain, Idaho. Several of the known stands of the plant association occur within Craters of the Moon National Monument and Preserve. Most stands are believed to be in a stable, high-quality condition.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: No Data Available
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: The plant association is known only to occur on medium-aged and older cinder cones of the Great Rift System, within the Snake River Basalts ecoregional section.
Nations: US
States/Provinces: ID
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.948032
Confidence Level: Low - Poorly Documented
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.3 Big Sagebrush - Threetip Sagebrush - Antelope Bitterbrush Steppe & Shrubland Macrogroup | M169 | 3.B.1.Ne.3 |
| Group | 3.B.1.Ne.3.b Basin Big Sagebrush - Threetip Sagebrush - Antelope Bitterbrush Big Sagebrush Steppe & Shrubland Group | G302 | 3.B.1.Ne.3.b |
| Alliance | A3179 Antelope Bitterbrush - Big Sagebrush Mesic Steppe & Shrubland Alliance | A3179 | 3.B.1.Ne.3.b |
| Association | CEGL005613 Antelope Bitterbrush / Basin Wildrye Shrub Grassland | CEGL005613 | 3.B.1.Ne.3.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Antelope Bitterbrush / Basin Wildrye Shrub Herbaceous Vegetation (Purshia tridentata / Leymus cinereus Shrub Herbaceous Vegetation) (Bell et al. 2009)
- Bell, J., D. Cogan, J. Erixson, and J. Von Loh. 2009. Vegetation inventory project report, Craters of the Moon National Monument and Preserve. Natural Resource Technical Report NPS/UCBN/NRTR-2009/277. National Park Service, Fort Collins, CO. 358 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.