Print Report
CEGL000726 Juniperus occidentalis / Cercocarpus ledifolius - Symphoricarpos oreophilus Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Western Juniper / Curl-leaf Mountain-mahogany - Mountain Snowberry Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: The range of this association is in the Owyhee Uplands and Basin and Range sections in Oregon and Idaho, and probably in extreme northern Nevada (an Oregon occurrence is located within a mile of the Nevada border). It is infrequent across its entire range. This association is found on well-drained and moderately deep soils, of gravelly loam over basalt. This association is usually found in the toeslope position at elevations around 1800 m on southern to southwestern aspects of 25-30% slope, in desert mountains. In this association Juniperus occidentalis has low cover but 100% constancy. Cercocarpus ledifolius cover averages 80%. The physiognomy is intermediate between a woodland savanna and a tall shrubland. Juniperus occidentalis is generally just over 10 m tall, while Cercocarpus ledifolius and other tall shrubs average between 5-10 m in height. The common tall shrubs include Cercocarpus ledifolius, Prunus virginiana, Prunus emarginata, and occasionally Amelanchier alnifolia. Shorter common shrubs include Ericameria nauseosa, Symphoricarpos oreophilus and Artemisia tridentata. Elymus elymoides and Poa secunda are codominant graminoids; Carex rossii and Bromus carinatus are also common. No forbs dominate, although Phacelia heterophylla, Senecio integerrimus, Geum triflorum, and Arabis holboellii are usually found.
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: In this association Juniperus occidentalis has low cover but 100% constancy. Cercocarpus ledifolius cover averages 80%. The physiognomy is intermediate between a woodland savanna and a tall shrubland. Juniperus occidentalis is generally just over 10 m tall, while Cercocarpus ledifolius and other tall shrubs average between 5-10 m in height. The common tall shrubs include Cercocarpus ledifolius, Prunus virginiana, Prunus emarginata, and occasionally Amelanchier alnifolia. Shorter common shrubs include Ericameria nauseosa (= Chrysothamnus nauseosus), Symphoricarpos oreophilus and Artemisia tridentata. Elymus elymoides and Poa secunda are codominant graminoids; Carex rossii and Bromus carinatus are also common. No forbs dominate, although Phacelia heterophylla, Senecio integerrimus, Geum triflorum, and Arabis holboellii are usually found.
Dynamics: No Data Available
Environmental Description: This association is found on well-drained and moderately deep soils, of gravelly loam over basalt. It is usually found in the toeslope position at elevations around 1800 m on southern to southwestern aspects of 25-30% slope, in desert mountains.
Geographic Range: The range of this association is in the Owyhee Uplands and Basin and Range sections in Oregon and Idaho, and probably in extreme northern Nevada (an Oregon occurrence is located within a mile of the Nevada border). It is infrequent across its entire range.
Nations: US
States/Provinces: ID, NV?, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.683248
Confidence Level: Low - Poorly Documented
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.b Western Juniper Open Woodland Group | G248 | 1.B.2.Nc.1.b |
| Alliance | A3499 Western Juniper Shrubby Woodland Alliance | A3499 | 1.B.2.Nc.1.b |
| Association | CEGL000726 Western Juniper / Curl-leaf Mountain-mahogany - Mountain Snowberry Woodland | CEGL000726 | 1.B.2.Nc.1.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: No Data Available
- 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.
- 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.
- Dealy, J. E., D. A. Leckenby, and D. M. Concannon. 1981. Wildlife habitats in managed rangelands--the Great Basin of southeastern Oregon. Plant communities and their importance to wildlife. General Technical Report PNW-120. USDA Forest Service, Pacific Northwest Region, Portland, OR. 66 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.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.