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CEGL000189 Pinus ponderosa / Physocarpus malvaceus Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Ponderosa Pine / Mallow Ninebark Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This plant association is known from stands within the Idaho Batholith, Bitterroot Mountains, and Palouse Prairie ecoregional sections. The association is found on moderately steep northwest- to northeast-facing slopes, below 915 m (3000 feet) elevation. The natural fire disturbance regime is one of frequent, low-intensity fire events. Pinus ponderosa / Symphoricarpos albus is found on adjacent hotter, drier south-facing slopes. Pseudotsuga menziesii / Physocarpus malvaceus is adjacent on more moist sites. Pinus ponderosa occurs with a structurally and compositionally diverse understory shrub layer. Symphoricarpos albus, Spiraea betulifolia, and Mahonia repens form an understory low-shrub canopy. Physocarpus malvaceus or Holodiscus discolor dominate the understory tall-shrub layer; Ceanothus sanguineus, Philadelphus lewisii, Prunus virginiana, and Amelanchier alnifolia are often associated. Highly consistent herbaceous species include Galium boreale, Moehringia macrophylla, Osmorhiza berteroi, Erythronium grandiflorum, Calamagrostis rubescens, and Carex geyeri.
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: Pinus ponderosa occurs with a structurally and compositionally diverse understory shrub layer. Symphoricarpos albus, Spiraea betulifolia, and Mahonia repens form an understory low-shrub canopy. Physocarpus malvaceus or Holodiscus discolor dominate the understory tall-shrub layer; Ceanothus sanguineus, Philadelphus lewisii, Prunus virginiana, and Amelanchier alnifolia are often associated. Highly consistent herbaceous species include Galium boreale, Moehringia macrophylla (= Arenaria macrophylla), Osmorhiza berteroi (= Osmorhiza chilensis), Erythronium grandiflorum, Calamagrostis rubescens, and Carex geyeri.
Dynamics: The natural fire disturbance regime is one of frequent, low-intensity fire events.
Environmental Description: This plant association is known from stands within the Idaho Batholith, Bitterroot Mountains, and Palouse Prairie ecoregional sections. The association is found on moderately steep northwest- to northeast-facing slopes, below 915 m (3000 feet) elevation.
Geographic Range: The plant association is relatively widespread with occurrences in the Idaho Batholith, Bitterroot Mountains, and Palouse Prairie ecoregional sections.
Nations: CA?,US
States/Provinces: BC?, ID, MT, WA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.687498
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.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 | CEGL000189 Ponderosa Pine / Mallow Ninebark Forest | CEGL000189 | 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 / Physocarpus malvaceus Habitat Type (Steele et al. 1981)
= Pinus ponderosa / Physocarpus malvaceus Habitat Type (Cooper et al. 1987)
= Pinus ponderosa / Physocarpus malvaceus Habitat Type (Cooper et al. 1987)
- 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.
- Cooper, S. V., K. E. Neiman, R. Steele, and D. W. Roberts. 1987. Forest habitat types of northern Idaho: A second approximation. General Technical Report INT-236.USDA Forest Service, Intermountain Research Station, Ogden, UT. 135 pp. [reprinted in 1991]
- Cooper, S. V., and R. D. Pfister. 1985. Forest habitat types of the Crow and Northern Cheyenne Indian Reservations. Unpublished termination report prepared for Bureau of Indian Affairs, Billings Area Office by USDA Forest Service, Intermountain Forest and Range Experiment Station, Ogden, UT. 118 pp.
- Crane, M. F., and W. C. Fischer. 1986. Fire ecology of the forest habitat types of central Idaho. General Technical Report INT-218. USDA Forest Service, Rocky Mountain Research Station, Fort Collins, CO. 86 pp.
- 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.
- Hall, F. C. 1973. Plant communities of the Blue Mountains in eastern Oregon and southeastern Washington. R6 Area Guide 3-1. USDA Forest Service, Pacific Northwest Region, Portland, OR. 62 pp.
- MTNHP [Montana Natural Heritage Program]. 2002b. List of ecological communities for Montana. Montana Natural Heritage Program, Montana State Library, Helena, MT.
- McLean, A. 1970. Plant communities of the Similkameen Valley, British Columbia, and their relationships to soils. Ecological Monographs 40(4):403-424.
- 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.
- Williams, C. K., and T. R. Lillybridge. 1985. Forested plant associations of the Colville National Forest. Draft. Unpublished field guide prepared for USDA Forest Service.