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CEGL001075 Artemisia cana ssp. viscidula - (Salix spp.) / Festuca idahoensis Wet Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Mountain Silver Sagebrush - (Willow species) / Idaho Fescue Wet Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This shrubland association is found in the mountains of southeastern Idaho, western Wyoming, and southwestern and central Montana. Stands occur in valley bottoms and stream terraces at elevations between 1980-2560 m. Sites are relatively mesic, flat to gently sloping, and typically occur between the uplands and the active floodplain. They are typically not flooded, but may be subirrigated from streams and upland seeps. The water table is usually over a meter from the surface. Soils are dark, loamy Mollisols with some mottles. This association has a sparse to moderately dense (20-45% cover) short-shrub layer (<1.0 m tall) that is characterized by at least 5% cover of Artemisia cana ssp. viscidula. Other shrubs include Dasiphora fruticosa ssp. floribunda, Salix wolfii or Salix boothii on moist sites, and Artemisia tridentata ssp. vaseyana on drier sites. The moderately dense graminoid layer is dominated by the perennial bunchgrass Festuca idahoensis. Other native graminoids include Carex microptera, Melica spectabilis, Achnatherum nelsonii ssp. dorei, Elymus trachycaulus, Poa secunda, and several other species of Carex. Forbs may include Symphyotrichum eatonii, Hymenoxys hoopesii, Potentilla gracilis, Valeriana occidentalis, Achillea millefolium, and Fragaria virginiana. Hymenoxys hoopesii will increase with heavy grazing disturbance, as will the introduced species Poa pratensis and Taraxacum officinale.
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: This association has a sparse to moderately dense (20-45% cover) short-shrub layer (<1.0 m tall) that is characterized by at least 5% cover of Artemisia cana ssp. viscidula. Other shrubs include Dasiphora fruticosa ssp. floribunda (= Pentaphylloides floribunda), Salix wolfii or Salix boothii on moist sites, and Artemisia tridentata ssp. vaseyana on drier sites. The moderately dense graminoid layer is dominated by the perennial bunchgrass Festuca idahoensis. Other native graminoids include Carex microptera, Melica spectabilis, Achnatherum nelsonii ssp. dorei (= Stipa columbiana), Elymus trachycaulus, Poa secunda, and several other species of Carex. Forbs may include Symphyotrichum eatonii (= Aster eatonii), Hymenoxys hoopesii (= Helenium hoopesii), Potentilla gracilis, Valeriana occidentalis, Achillea millefolium, and Fragaria virginiana. Hymenoxys hoopesii will increase with heavy grazing disturbance, as will the introduced species Poa pratensis and Taraxacum officinale.
Dynamics: No Data Available
Environmental Description: Stands occur in valley bottoms and stream terraces at elevations between 1980-2560 m. Sites are relatively mesic, flat to gently sloping, and typically occur between the uplands and the active floodplain. They are typically not flooded, but may be subirrigated from streams and upland seeps. The water table is usually over a meter from the surface. Soils are dark, loamy Mollisols with some mottles.
Geographic Range: This association is found in the northern Rocky Mountains of southeastern Idaho, western Wyoming, and southwestern and central Montana.
Nations: US
States/Provinces: ID, MT, WY
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.684844
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G3
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 2 Shrub & Herb Vegetation Class | C02 | 2 |
| Subclass | 2.C Shrub & Herb Wetland Subclass | S44 | 2.C |
| Formation | 2.C.4 Temperate to Polar Freshwater Marsh, Wet Meadow & Shrubland Formation | F013 | 2.C.4 |
| Division | 2.C.4.Nb Western North American Temperate Freshwater Marsh, Wet Meadow & Shrubland Division | D031 | 2.C.4.Nb |
| Macrogroup | 2.C.4.Nb.5 Sitka Alder - Booth''s Willow / Northwest Territory Sedge Montane Marsh, Wet Meadow & Shrubland Macrogroup | M893 | 2.C.4.Nb.5 |
| Group | 2.C.4.Nb.5.a Narrowleaf Willow - Hawthorn species - Stretchberry Rocky Mountain-Great Basin Riparian Shrubland Group | G526 | 2.C.4.Nb.5.a |
| Alliance | A2557 Silver Sagebrush Wet Shrubland Alliance | A2557 | 2.C.4.Nb.5.a |
| Association | CEGL001075 Mountain Silver Sagebrush - (Willow species) / Idaho Fescue Wet Shrubland | CEGL001075 | 2.C.4.Nb.5.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Artemisia cana / Festuca idahoensis Habitat Type (Hansen et al. 1995)
- 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.
- Bramble-Brodahl, M. K. 1978. Classification of Artemisia vegetation in the Gros Ventre area, Wyoming. M.S. thesis, University of Idaho, Moscow.
- 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.
- Hansen, P. L., S. W. Chadde, and R. D. Pfister. 1988b. Riparian dominance types of Montana. University of Montana Miscellaneous Publication 49. Montana Forest and Conservation Experiment Station, Missoula. 411 pp.
- MTNHP [Montana Natural Heritage Program]. 2002b. List of ecological communities for Montana. Montana Natural Heritage Program, Montana State Library, Helena, MT.
- Mueggler, W. F., and W. L. Stewart. 1980. Grassland and shrubland habitat types of western Montana. General Technical Report INT-66. USDA Forest Service, Intermountain Forest and Range Experiment Station, Ogden, UT. 154 pp.
- Mutz, K. M., and R. Graham. 1982. Riparian community type classification-Big Piney Range District, Wyoming. Unpublished report prepared for USDA Forest Service, Intermountain Region under contract 53-84M8-1-974, by Meiiji Resource Consultants, Layton, UT. 88 pp.
- Schlatterer, E. F. 1972. A preliminary description of plant communities found on the Sawtooth, White Cloud, Boulder, and Pioneer mountains. Unpublished report prepared for USDA Forest Service, Intermountain Region, Ogden, UT. 111 pp.
- WNDD [Wyoming Natural Diversity Database]. No date. Unpublished data on file. Wyoming Natural Diversity Database, University of Wyoming, Laramie, WY.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.
- Youngblood, A. P., W. G. Padgett, and A. H. Winward. 1985a. Riparian community type classification of eastern Idaho-western Wyoming. R4-Ecol-85-01. USDA Forest Service, Intermountain Region, Ogden, UT. 78 pp.