Print Report
CEGL001968 Geum rossii - Selaginella densa Alpine Fell-field
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Ross'' Avens - Lesser Spikemoss Alpine Fell-field
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This is an alpine turf vegetation type growing on windswept sites in the Wind River Mountains of Wyoming. Sites supporting this type are summits, ridges, and saddles between 3231 and 3505 m (10,600-11,500 feet) elevation, exposed to the prevailing winter winds. Rocks are common on the soil surface in the thick turf layer. Forbs and graminoids contribute roughly equal amounts of cover. Geum rossii contributes the most cover, and Selaginella densa is the secondary species; other species occurring in all stands and contributing substantial cover are Antennaria alpina, Minuartia obtusiloba, Trisetum spicatum, Astragalus kentrophyta, and Carex saxatilis.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This type has been named only from the Wind River Mountains of west-central Wyoming. The validity of this type is uncertain, though, and a comparison with other alpine types may show that it should be considered part of a more widespread association.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Forbs and graminoids contribute roughly equal amounts of cover. Geum rossii contributes the most cover, and Selaginella densa is the secondary species; other species occurring in all stands and contributing substantial cover are Antennaria alpina, Minuartia obtusiloba (= Arenaria obtusiloba), Trisetum spicatum, Astragalus kentrophyta, and Carex saxatilis.
Dynamics: No Data Available
Environmental Description: Sites supporting this type are summits, ridges, and saddles between 3231 and 3505 m (10,600-11,500 feet) elevation, exposed to the prevailing winter winds. Rocks are common on the soil surface in the thick turf layer.
Geographic Range: This type has been named only from the Wind River Mountains of west-central Wyoming. The validity of this type is uncertain, though, and a comparison with other alpine types may show that it should be considered part of a more widespread association.
Nations: US
States/Provinces: WY
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.687745
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G2G3Q
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 4 Polar & High Montane Scrub, Grassland & Barrens Class | C04 | 4 |
| Subclass | 4.B Temperate to Polar Alpine & Tundra Vegetation Subclass | S12 | 4.B |
| Formation | 4.B.1 Temperate & Boreal Alpine Tundra Formation | F037 | 4.B.1 |
| Division | 4.B.1.Nb Western North American Alpine Tundra Division | D043 | 4.B.1.Nb |
| Macrogroup | 4.B.1.Nb.2 Eight-petal Mountain-avens - Blackroot Sedge - Moss Campion Alpine Tundra Macrogroup | M099 | 4.B.1.Nb.2 |
| Group | 4.B.1.Nb.2.b Blackroot Sedge - Bellardi Bog Sedge - Cushion Phlox Alpine Turf & Fell-field Group | G314 | 4.B.1.Nb.2.b |
| Alliance | A3154 Twin-flower Sandwort - Rocky Mountain Nailwort - Moss Campion Alpine Fell-field Alliance | A3154 | 4.B.1.Nb.2.b |
| Association | CEGL001968 Ross'' Avens - Lesser Spikemoss Alpine Fell-field | CEGL001968 | 4.B.1.Nb.2.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Geum rossii - Selaginella densa (Jones and Ogle 2000)
= Geum rossii - Selaginella densa Community Type (Potkin and Munn 1989)
= Geum rossii - Selaginella densa Community Type (Potkin and Munn 1989)
- 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.
- Jones, G., and S. Ogle. 2000. Characterization abstracts for vegetation types on the Bighorn, Medicine Bow, and Shoshone national forests. Prepared for USDA Forest Service, Region 2 by the Wyoming Natural Diversity Database, University of Wyoming.
- Potkin, M., and L. Munn. 1989. Subalpine and alpine plant communities in the Bridger Wilderness, Wind River Range, Wyoming. USDA Forest Service Contract No. 53-8555-3-00015. Department of Plant, Soil, and Insect Sciences, University of Wyoming, Laramie. 117 pp. plus appendix.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.