Print Report
CEGL000845 Pinus ponderosa / Artemisia arbuscula Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Ponderosa Pine / Little Sagebrush Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This type is thought to be restricted to isolated ridges in the Blue, Ochoco and Wallowa mountains in Oregon. This is an open woodland in which Pinus ponderosa dominates with a sparse canopy along ridges or other shallow soiled areas. They are often indicative of a transition between low sagebrush/bunchgrass communities and ponderosa pine/bunchgrass communities (Johnson and Clausnitzer 1992). Artemisia arbuscula is the dominant shrub, and dominates other associated bunchgrasses: Festuca idahoensis, Pseudoroegneria spicata, Poa secunda, and Koeleria macrantha.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This is a somewhat transitional type and may not be worth maintaining in the classification. However, it is both rare and fairly threatened, and easily recognized. In central Oregon, there is a fairly extensive area in which Pinus ponderosa and Artemisia arbuscula occur together. If this is more common in the Intermountain West, the classification and rank of this type might need re-evaluation. The stands in New Mexico and possibly Arizona may need to be split into a different association, as Artemisia arbuscula in those areas may be Artemisia arbuscula var. nova, which is now considered Artemisia nova by Kartesz (1999).
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: This type is thought to be restricted to isolated ridges in the Blue, Ochoco and Wallowa mountains in Oregon. It also occurs in a small region of northern New Mexico.
Nations: US
States/Provinces: CO, ID?, NM, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.683660
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G2G3Q
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.Nb Rocky Mountain Forest & Woodland Division | D194 | 1.B.2.Nb |
| Macrogroup | 1.B.2.Nb.2 Ponderosa Pine - Douglas-fir - Limber Pine Central Rocky Mountain Dry Forest Macrogroup | M501 | 1.B.2.Nb.2 |
| Group | 1.B.2.Nb.2.a Ponderosa Pine Central Rocky Mountain Open Woodland Group | G213 | 1.B.2.Nb.2.a |
| Alliance | A3446 Ponderosa Pine / Shrub Understory Central Rocky Mountain Woodland Alliance | A3446 | 1.B.2.Nb.2.a |
| Association | CEGL000845 Ponderosa Pine / Little Sagebrush Woodland | CEGL000845 | 1.B.2.Nb.2.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Pinus ponderosa / Artemisia arbuscula Habitat Type (DeVelice et al. 1986)
? Pinus ponderosa / Artemisia arbuscula Plant Association (Larson and Moir 1987) [The diagnostic understory species is actually Artemisia arbuscula var. nova. It is now classified as Pinus ponderosa / Artemisia nova Plant Association.]
? Pinus ponderosa / Artemisia arbuscula Plant Association (Larson and Moir 1987) [The diagnostic understory species is actually Artemisia arbuscula var. nova. It is now classified as Pinus ponderosa / Artemisia nova Plant Association.]
- 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.
- DeVelice, R. L., J. A. Ludwig, W. H. Moir, and F. Ronco, Jr. 1986. A classification of forest habitat types of northern New Mexico and southern Colorado. General Technical Report RM-131. USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, Fort Collins, CO. 59 pp.
- Johnson, C. G., and R. R. Clausnitzer. 1992. Plant associations of the Blue and Ochoco mountains. R6-ERW-TP-036-92. USDA Forest Service, Pacific Northwest Region, Wallowa-Whitman National Forest. 163 pp. plus appendices.
- 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.
- Kartesz, J. T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: J. T. Kartesz and C. A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, NC.
- Larson, M., and W. H. Moir. 1987. Forest and woodland habitat types of northern New Mexico and northern Arizona. Edition 2. USDA Forest Service, Southwestern Region, Albuquerque, NM.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.