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CEGL000675 Populus balsamifera ssp. trichocarpa / Mixed Herbs Riparian Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Black Cottonwood / Mixed Herbs Riparian Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This cold-deciduous riparian forest occurs in lower mountains and foothills at 610 to 2013 m (2000-6591 feet) elevation, on alluvial terraces and floodplains of major and minor rivers and streams. Soils are poorly developed, loamy to cobbly Entisols. It is thought to be a grazing-induced type; the trees are mature and the herbaceous layer predominantly dominated by non-native graminoid species. The canopy cover is Populus balsamifera ssp. trichocarpa with 30-60% cover. There are very few shrubs and, if present, do not form a stratum layer. The herbaceous layer is dominated by either non-native graminoids or increaser species such as Phleum pratense, Poa pratensis, Bromus vulgaris, and Elymus glaucus. Forbs are in low abundance and are also dominated by increaser species.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Hansen et al. (1995) mention a similar type described by Kovalchik (1987), who mentions one stand of three of Populus trichocarpa / Symphoricarpos albus / Poa pratensis that had no shrubs present (p.136). Hansen et al. also cite a similar community as described from central Idaho by Tuhy and Jensen (1982), but only a reference to Populus trichocarpa communities with shrubby understories (Alnus incana, Cornus sericea, and Salix exigua on p.119) could be found.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This association is thought to be a grazing-induced type. The trees are mature and the herbaceous layer is predominantly dominated by non-native graminoid species. The canopy cover is Populus balsamifera ssp. trichocarpa (= Populus trichocarpa) with 30-60% cover. Populus angustifolia and Pinus ponderosa may also be present in low amounts. There are very few shrubs and, if present, do not form a stratum layer. Scattered shrub species include Ribes inerme, Lonicera involucrata, Cornus sericea, Rosa woodsii, and Rubus idaeus. The herbaceous layer is dominated by either non-native graminoids or increaser species such as Phleum pratense, Poa pratensis, Bromus vulgaris, and Elymus glaucus. Forbs present include Tanacetum vulgare, Centaurea stoebe ssp. micranthos (= Centaurea maculosa), Urtica dioica, Thalictrum, Aconitum columbianum, Angelica arguta, Fragaria virginiana, Galium boreale, Geranium viscosissimum, Rudbeckia occidentalis, and Achillea millefolium.
Dynamics: No Data Available
Environmental Description: This cold-deciduous riparian forest is common in low mountains and foothills. It occurs from 610 to 2013 m (2000-6591 feet) elevation on alluvial terraces and floodplains of major and minor rivers and streams. Soils are poorly developed, loamy to cobbly Entisols. It is thought to be a grazing-induced type; the trees are mature and the herbaceous layer predominantly dominated by non-native graminoid species.
Geographic Range: This association is reported from Montana, Nevada, and Wyoming.
Nations: US
States/Provinces: MT, NV, WA, WY
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688390
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: G3?
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.3 Temperate Flooded & Swamp Forest Formation | F026 | 1.B.3 |
| Division | 1.B.3.Nc Rocky Mountain-Great Basin Montane Flooded & Swamp Forest Division | D195 | 1.B.3.Nc |
| Macrogroup | 1.B.3.Nc.1 Engelmann Spruce - Narrowleaf Cottonwood / Red-osier Dogwood Riparian & Swamp Forest Macrogroup | M034 | 1.B.3.Nc.1 |
| Group | 1.B.3.Nc.1.c Northern Rocky Mountain Lowland-Foothill Riparian Forest Group | G796 | 1.B.3.Nc.1.c |
| Alliance | A0311 Black Cottonwood Northern Rocky Mountain Riparian Forest Alliance | A0311 | 1.B.3.Nc.1.c |
| Association | CEGL000675 Black Cottonwood / Mixed Herbs Riparian Forest | CEGL000675 | 1.B.3.Nc.1.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Populus trichocarpa / Grass-Forb Habitat Type (Blackburn et al. 1968a) [The one community within this habitat type (p.39) is called Populus trichocarpa / Artemisia tridentata. Blackburn mentions this is a part of the Populus trichocarpa / grass-forb habitat type and lists it in Table 32 (p.49) but gives no reference, description or justification of that habitat type.]
= Populus trichocarpa / Herbaceous Community Type (Hansen et al. 1995) [(p.250)]
= Populus trichocarpa / Herbaceous Community Type (Hansen et al. 1995) [(p.250)]
- Blackburn, W. H., P. T. Tueller, and R. E. Eckert, Jr. 1968a. Vegetation and soils of the Mill Creek watershed. Nevada Agricultural Experiment Station Bulletin R-43. University of Nevada, Reno. 69 pp.
- 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., K. Varga, and G. Kittel. 2005. USGS-NPS Vegetation Mapping Program: Grand Teton National Park and John D. Rockefeller, Jr. Memorial Parkway. Final Project Report 2002-2005 Vegetation Mapping Project. Technical Memorandum 8260-06-02. USDI Bureau of Reclamation, Denver, CO. 87 pp. plus Appendixes A-F.
- Erixson, J., D. Cogan, and J. Von Loh. 2011b. Vegetation inventory project report: Lake Roosevelt National Recreation Area. Natural Resource Report NPS/UCBN/NRR--2011/434 National Park Service, Fort Collins, CO.
- Erixson, J., and D. Cogan. 2012c. Vegetation inventory project report: Nez Perce National Historical Park. Natural Resource Report NPS/UCBN/NRR--2012/531. National Park Service, Fort Collins, CO. 380 pp.
- Hansen, P. L., R. D. Pfister, K. Boggs, B. J. Cook, J. Joy, and D. K. Hinckley. 1995. Classification and management of Montana''s riparian and wetland sites. Miscellaneous Publication No. 54. Montana Forest and Conservation Experiment Station, School of Forestry, University of Montana. 646 pp. plus posters.
- Kovalchik, B. L. 1987. Riparian zone associations - Deschutes, Ochoco, Fremont, and Winema national forests. Technical Paper 279-87. USDA Forest Service, Pacific Northwest Region, Portland, OR. 171 pp.
- Peterson, E. B. 2008. International Vegetation Classification alliances and associations occurring in Nevada with proposed additions. Nevada Natural Heritage Program, Carson City, NV. 348 pp.
- Rice, P. M., E. W. Schweiger, W. Gustafson, C. Lea, D. Manier, D. Shorrock, B. Frakes, and L. O’Gan. 2012c. Vegetation classification and mapping project report, Grant-Kohrs Ranch National Historic Site. Natural Resource Report NPS/ROMN/NRR--2012/589. National Park Service, Fort Collins, CO. 176 pp.
- Tuhy, J. S., and S. Jensen. 1982. Riparian classification for the Upper Salmon and Middle Fork Salmon River drainages, Idaho. Unpublished report prepared for the USDA Forest Service, Intermountain Region by White Horse Associates, Smithfield, UT. 183 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.