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CEGL000833 Pinus monophylla - Juniperus osteosperma / Artemisia tridentata ssp. vaseyana / Pseudoroegneria spicata Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Singleleaf Pinyon - Utah Juniper / Mountain Big Sagebrush / Bluebunch Wheatgrass Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This woodland plant association is described from stands located in the Jim Sage Mountains and west-central Albion Mountains of Idaho, within the Northwest Basin and Range ecoregional section. Additional stands occur in Nevada and are expected to occur in northern Utah. The plant association occurs on a range of different parent materials. Occurrences are described from moderately steep slopes in ridgetop and upper slope positions, on north- to northeast- and east- to southeast-facing slopes. Pinus monophylla and Juniperus osteosperma are codominant often with nearly equal cover. Stands are open, with a mix of medium to large sized mature trees and seedling, sapling and pole sized regeneration. Artemisia tridentata ssp. vaseyana is well represented in the relatively sparse shrub layer. Pseudoroegneria spicata is consistently well represented; Poa secunda is present.
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: Little information is available regarding the structure and composition of this association. Two evergreen needle-leaved trees dominate the canopy, Pinus monophylla and Juniperus osteosperma, with total cover of 30-70%. Pinus monophylla is always present, while the Juniperus is present with varying frequency. There is a short-shrub layer dominated by the narrow-leaved evergreen Artemisia tridentata ssp. vaseyana. The herbaceous understory is dominated by the perennial bunchgrass Pseudoroegneria spicata, and several Poa spp. are also present. No other information is available on plant species cover or composition.
Dynamics: No Data Available
Environmental Description: This association occurs in a mountainous region that is part of the northern extension of the Basin and Range Province into Idaho. This region is characterized by a series of parallel mountain ranges oriented in a north-south direction. The intervening valleys are wide and floored with sediments from ancient Lake Bonneville. This association has been described from two small ranges within this region, the southern Albion Mountains and the adjacent Jim Sage Mountains. The Albions are a complex of four gneiss domes, aligned along a north-south axis. Landforms associated with these domes include steep-sided ridges, and erosional features such as tors and linear rock ridges enclosing narrow canyons. Rock types include granodiorite, gneiss with bodies of schist, some quartzite, and lenses, pods and sheets of amphibolite. The Jim Sage range is composed of Tertiary lavas, underlain by sedimentary strata of siltstones, sandstones, and conglomerates. The climate of the region is characterized as semi-arid, with warm summers and cold winters. Average annual precipitation is 28 cm (11 inches), and shows a peak during April through August, when more than 45% of the annual total is received. The remainder is distributed evenly throughout the year. Streams in both regions are intermittent. More specific information for this association is not available. Elevations range from approximately 1830 to 2255 m (6000-7400 feet). Soils are sandy to gravelly and well-drained, and most sites are rocky. The occurrence on the Jim Sage Canyon RNA is on a steep, west-facing slope.
Geographic Range: The association occurs in the northern Great Basin, within the Northwest Basin and Range ecoregional section. The northern extent of the range is in the Jim Sage Mountains and west-central Albion Mountains of Idaho. The southern extent of the range is not known.
Nations: US
States/Provinces: ID, NV, UT?
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688645
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: G1
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.2 Cool Temperate Forest & Woodland Formation | F008 | 1.B.2 |
| Division | 1.B.2.Nc Western North American Pinyon - Juniper Woodland & Scrub Division | D010 | 1.B.2.Nc |
| Macrogroup | 1.B.2.Nc.1 Singleleaf Pinyon - Utah Juniper - Western Juniper Intermountain Woodland Macrogroup | M896 | 1.B.2.Nc.1 |
| Group | 1.B.2.Nc.1.c Singleleaf Pinyon - Utah Juniper Woodland Group | G899 | 1.B.2.Nc.1.c |
| Alliance | A2108 Singleleaf Pinyon - Utah Juniper Shrubby Woodland Alliance | A2108 | 1.B.2.Nc.1.c |
| Association | CEGL000833 Singleleaf Pinyon - Utah Juniper / Mountain Big Sagebrush / Bluebunch Wheatgrass Woodland | CEGL000833 | 1.B.2.Nc.1.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Pinus monophylla - Juniperus osteosperma / Artemisia tridentata ssp. vaseyana / Pseudoroegneria spicata (Caicco and Wellner 1983a)
= Pinus monophylla - Juniperus osteosperma / Artemisia tridentata ssp. vaseyana / Pseudoroegneria spicata (Rust 1997a)
= Pinus monophylla - Juniperus osteosperma / Artemisia tridentata ssp. vaseyana / Pseudoroegneria spicata Woodland (Caicco and Wellner 1983b)
= Pinus monophylla - Juniperus osteosperma / Artemisia tridentata ssp. vaseyana / Pseudoroegneria spicata (Rust 1997a)
= Pinus monophylla - Juniperus osteosperma / Artemisia tridentata ssp. vaseyana / Pseudoroegneria spicata Woodland (Caicco and Wellner 1983b)
- 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.
- Caicco, S. L., and C. A. Wellner. 1983a. Research Natural Area recommendation for City of Rocks. Unpublished report prepared for USDI Bureau of Land Management, Burley District, Idaho by Idaho Natural Areas Coordinating Committee. On file at Idaho Conservation Data Center, Boise, ID. 12 pp.
- Caicco, S. L., and C. A. Wellner. 1983b. Research Natural Area recommendation for Jim Sage Canyon. Unpublished report prepared for USDI Bureau of Land Management, Burley District, Idaho by Idaho Natural Areas Coordinating Committee. On file at Idaho Conservation Data Center, Boise, ID.
- Cogan, D., J. E. Taylor, and K. Schulz. 2012. Vegetation inventory project: Great Basin National Park. Natural Resource Report NPS/MOJN/NRR--2012/568. National Park Service, Fort Collins, CO. 373 pp.
- Rust, S. K. 1997a. Community concepts and applications for conservation. Unpublished report prepared for USDA Forest Service, Northern Region, Intermountain Region and Intermountain Research Station. Conservation Data Center, Idaho Department of Fish and Game, Boise. 67 pp.
- Schulz, K. A., and M. E. Hall. 2011. Vegetation inventory project: Great Basin National Park. Unpublished report submitted to USDI National Park Service, Mojave Desert Inventory and Monitoring Network. NatureServe, Western Regional Office, Boulder, CO. 30 pp. plus Appendices A-H.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.