Print Report
CEGL000879 Pinus ponderosa / Hesperostipa comata Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Ponderosa Pine / Needle-and-Thread Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: As defined, this type is found in the Spokane valley in northeastern Washington and adjacent Idaho, also in pockets in Clearwater and adjacent Snake River Canyon in Idaho. This association includes Pinus ponderosa stands generally on coarse-textured soils with few or no shrubs and an herbaceous layer dominated by Hesperostipa comata, Achnatherum lemmonii, Achnatherum occidentale, Achnatherum thurberianum, or Aristida purpurea var. longiseta. The association is defined primarily by sandy soils and the absence of Festuca idahoensis and/or trace only amounts of Pseudoroegneria spicata.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This type is differentiated from other Pinus ponderosa / Stipa associations in the eastern Cascade that usually contain Purshia tridentata.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This association includes Pinus ponderosa stands generally on coarse-textured soils with few or no shrubs and an herbaceous layer dominated by Hesperostipa comata (= Stipa comata), Achnatherum lemmonii (= Stipa lemmonii), Achnatherum occidentale (= Stipa occidentalis), Achnatherum thurberianum (= Stipa thurberiana), or Aristida purpurea var. longiseta (30-60% cover). The association is defined primarily by sandy soils and the absence of Festuca idahoensis and/or trace only amounts of Pseudoroegneria spicata. There are 13 native bunchgrass species (35-100% cover), 51 (49 native) perennial forbs (1-20% cover), 19 (11 native) annuals (1-20% cover), 3 shrubs in trace amounts, and 7 dwarf-shrubs (1-9% cover). This is differentiated from other Pinus ponderosa / Stipa associations in the eastern Cascade that usually contain Purshia tridentata.
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: As defined, this type is found in the Spokane valley in northeastern Washington and adjacent Idaho, also in pockets in Clearwater and adjacent Snake River Canyon in Idaho.
Nations: US
States/Provinces: ID, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.689096
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.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 | A3447 Ponderosa Pine / Herbaceous Understory Central Rocky Mountain Open Woodland Alliance | A3447 | 1.B.2.Nb.2.a |
| Association | CEGL000879 Ponderosa Pine / Needle-and-Thread Woodland | CEGL000879 | 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: 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.
- Daubenmire, R. 1952. Forest vegetation of northern Idaho and adjacent Washington, and its bearing on concepts of vegetation classification. Ecological Monographs 22(4):301-330.
- Daubenmire, R. F., and J. B. Daubenmire. 1968. Forest vegetation of eastern Washington and northern Idaho. Washington State University Agricultural Experiment Station Technical Bulletin No. 60. 104 pp.
- Franklin, J. F., and C. T. Dyrness. 1973. Natural vegetation of Oregon and Washington. General Technical Report PNW-8. USDA Forest Service, Pacific Northwest Forest and Range Experiment Station, Portland, OR. 417 pp.
- Steele, R., R. D. Pfister, R. A. Ryker, and J. A. Kittams. 1981. Forest habitat types of central Idaho. General Technical Report INT-114. USDA Forest Service, Intermountain Forest and Range Experiment Station, Ogden, UT. 138 pp.
- WNHP [Washington Natural Heritage Program]. 2018. Unpublished data files. Washington Natural Heritage Program, Department of Natural Resources, Olympia, WA.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.
- Zamora, B. A. 1983. Forest habitat types of the Spokane Indian Reservation. Agricultural Research Center, Washington State University Research Bulletin XB-0936-1983.