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CEGL000970 Cercocarpus ledifolius / Symphoricarpos oreophilus Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Curl-leaf Mountain-mahogany / Mountain Snowberry Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association is described for the western portion of the Northwest Basin and Range and the Owyhee Uplands ecoregional sections. It occurs on moderate, south- to northeast-facing slopes, on upper slope positions, ridgecrests, or mesatops, often in association with shallow soil or talus of basalt or rhyolite parent materials. Elevation ranges from 1770 to 1890 m (5800-6200 feet). The overstory is dominated by Cercocarpus ledifolius. Juniperus occidentalis may be present. Symphoricarpos oreophilus, Prunus virginiana, Chrysothamnus spp., and Artemisia tridentata ssp. vaseyana are common understory shrub species which occur with varying abundance. Poa secunda, Leymus cinereus, Festuca idahoensis, Senecio integerrimus, and Balsamorhiza sagittata are characteristic understory grass and forb species.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Dealy (1975) describes several different Cercocarpus ledifolius communities that are lumped into this woodland association. While his Cercocarpus ledifolius / Symphoricarpos oreophilus / Poa ampla and Cercocarpus ledifolius / Symphoricarpos oreophilus appear relatively similar, his [and see Gruell et al. (1985)] Cercocarpus ledifolius / Symphoricarpos oreophilus / Festuca idahoensis plant association appears distinct. Further review is needed.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: The overstory is dominated by Cercocarpus ledifolius. Juniperus occidentalis may be present. Symphoricarpos oreophilus, Prunus virginiana, Chrysothamnus spp., and Artemisia tridentata ssp. vaseyana are common understory shrub species which occur with varying abundance. Poa secunda, Leymus cinereus (= Elymus cinereus), Festuca idahoensis, Senecio integerrimus, and Balsamorhiza sagittata are characteristic understory grass and forb species.
Dynamics: No Data Available
Environmental Description: This association occurs on moderate, south- to northeast-facing slopes, on upper slope positions, ridgecrests, or mesatops, often in association with shallow soil or talus of basalt or rhyolite parent materials. Elevation ranges from 1770 to 1890 m (5800-6200 feet).
Geographic Range: The association is a regional endemic of the Owyhee Uplands and western portion of the Northwest Basin and Range ecoregional sections. A few stands have also been identified in the southern portion of the Challis Volcanics ecoregional section and the eastern portion of the Northwest Basin and Range section in Idaho.
Nations: US
States/Provinces: ID, NV, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688393
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G2
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.d Curl-leaf Mountain-mahogany Woodland & Scrub Group | G249 | 1.B.2.Nc.1.d |
| Alliance | A0586 Curl-leaf Mountain-mahogany Shrubby Woodland Alliance | A0586 | 1.B.2.Nc.1.d |
| Association | CEGL000970 Curl-leaf Mountain-mahogany / Mountain Snowberry Woodland | CEGL000970 | 1.B.2.Nc.1.d |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: > Cercocarpus ledifolius / Symphoricarpos oreophilus / Festuca idahoensis plant association (Dealy 1975) [appears distinct.]
? Cercocarpus ledifolius / Symphoricarpos oreophilus / Festuca idahoensis plant association (Gruell et al. 1985)
> Cercocarpus ledifolius / Symphoricarpos oreophilus / Poa ampla (Dealy 1975) [appears similar.]
> Cercocarpus ledifolius / Symphoricarpos oreophilus (Dealy 1975) [appears similar.]
? Cercocarpus ledifolius / Symphoricarpos oreophilus / Festuca idahoensis plant association (Gruell et al. 1985)
> Cercocarpus ledifolius / Symphoricarpos oreophilus / Poa ampla (Dealy 1975) [appears similar.]
> Cercocarpus ledifolius / Symphoricarpos oreophilus (Dealy 1975) [appears similar.]
- 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.
- 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.
- Dealy, J. E. 1975. Ecology of curl-leaf mahogany (Cercocarpus ledifolius Nutt.) in Oregon and adjacent areas. Unpublished dissertation, Oregon State University, Corvallis. 168 pp.
- Gruell, G. E., S. Bunting, and L. Neuenschwander. 1985. Influence of fire on curlleaf mountain-mahogany in the Intermountain West. Pages 58-72 in: J. E. Lotan and J. K. Brown, compilers. Fire''s effects on wildlife habitat-symposium proceedings. USDA Forest Service Technical Report INT-186, Intermountain Forest and Range Experiment Station, Ogden, UT.
- 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.
- 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.