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CEGL001625 Festuca idahoensis - Achnatherum richardsonii Grassland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Idaho Fescue - Richardson''s Needlegrass Grassland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This montane grassland association occurs in scattered locations in the mountains of southwestern Montana and northern Wyoming on both sides of the Continental Divide. Stands are found infrequently on relatively mesic, gentle terrain with deep soils. Elevation ranges from 1100-2100 m. This association has a dense and diverse herbaceous layer dominated by medium-tall perennial graminoids with perennial forbs. Dominant graminoids are Achnatherum richardsonii, Festuca idahoensis, Achnatherum occidentale, and Danthonia intermedia. Perennial forbs are abundant and diverse. Consistent forbs are Geranium viscosissimum, Achillea millefolium, and Heterotheca villosa. Scattered Rosa arkansana shrubs are often present. The dominance of Achnatherum spp. and the lack of Pseudoroegneria spicata, Pascopyrum smithii, or Elymus caninus as a codominant species make this association distinct.
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 dense and diverse herbaceous layer dominated by medium-tall perennial graminoids with perennial forbs. Dominant graminoids are Achnatherum richardsonii (= Stipa richardsonii), Festuca idahoensis, Achnatherum occidentale (= Stipa occidentalis), and Danthonia intermedia. Perennial forbs are abundant and diverse. Consistent forbs are Geranium viscosissimum, Achillea millefolium, and Heterotheca villosa. Scattered Rosa arkansana shrubs are often present.
Dynamics: No Data Available
Environmental Description: Stands are found infrequently on relatively mesic, gentle terrain with deep soils. Elevation ranges from 1100-2100 m.
Geographic Range: This association occurs in the mountains of southwestern Montana and Yellowstone National Park in northwestern Wyoming on both sides of the Continental Divide.
Nations: CA?,US
States/Provinces: AB?, MT, WY
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.683263
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.B Temperate & Boreal Grassland & Shrubland Subclass | S18 | 2.B |
| Formation | 2.B.2 Temperate Grassland & Shrubland Formation | F012 | 2.B.2 |
| Division | 2.B.2.Nf Western North American Grassland & Shrubland Division | D022 | 2.B.2.Nf |
| Macrogroup | 2.B.2.Nf.2 Saskatoon Serviceberry / Idaho Fescue - Bluebunch Wheatgrass Grassland & Shrubland Macrogroup | M048 | 2.B.2.Nf.2 |
| Group | 2.B.2.Nf.2.a Downy Ryegrass - Idaho Fescue - Spike Fescue Grassland Group | G267 | 2.B.2.Nf.2.a |
| Alliance | A3966 Idaho Fescue - Pinegrass - Columbia Needlegrass Central Rocky Mountain Montane Mesic Grassland Alliance | A3966 | 2.B.2.Nf.2.a |
| Association | CEGL001625 Idaho Fescue - Richardson''s Needlegrass Grassland | CEGL001625 | 2.B.2.Nf.2.a |
Concept Lineage: duplicate
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Festuca idahoensis - Stipa richardsonii Habitat Type (Mueggler and Stewart 1980)
- ANHIC [Alberta Natural Heritage Information Centre]. 2018. Community database files. Alberta Natural Heritage Information Centre, Parks and Protected Areas Division, Alberta Community Development, Edmonton.
- 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.
- Hop, K., M. Reid, J. Dieck, S. Lubinski, and S. Cooper. 2007. U.S. Geological Survey-National Park Service Vegetation Mapping Program: Waterton-Glacier International Peace Park. U.S. Geological Survey, Upper Midwest Environmental Sciences Center, La Crosse, WI. 131 pp. plus Appendices A-L.
- 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.
- Reid, M. S., S. V. Cooper, and G. Kittel. 2004. Vegetation classification of Waterton-Glacier International Peace Park. Final report for USGS-NPS Vegetation Mapping Program, International Peace Park Mapping Project. NatureServe, Arlington VA.
- 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.