Print Report
CEGL001940 Heracleum maximum - Rudbeckia occidentalis Wet Meadow
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Common Cow-parsnip - Western Coneflower Wet Meadow
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association is a rich meadow type known only from northwestern Wyoming, but it is well-documented with 24 plots. It occurs primarily in the subalpine zone, at elevations of 1700 to 2700 m (6450-8900 feet), on moderate to steep slopes (average 17%), up to 40%. It occurs on benches and lower slopes of moist pockets facing any aspect; the local topography is even to concave, and stands are generally moist throughout the summer. Soils are rich with clay and organic matter; textures include silty clay loam to sandy clay. It is dominated by tall forbs, characterized by the presence of one or more of the species Heracleum maximum, Rudbeckia occidentalis, or Thalictrum fendleri. Usually two of the three species will be abundant, although stands do occur with only one of the three species present. Other forbs commonly present include Achillea millefolium, Delphinium x occidentale, and Geranium viscosissimum. Graminoids are typically present but in lower abundance than all forbs combined. Graminoid species include Poa pratensis, Bromus vulgaris, Bromus carinatus, Carex hoodii, Elymus trachycaulus, and Festuca idahoensis.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association is a rich meadow type known only from northwestern Wyoming, but it is well-documented with 24 plots.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This association is described from 24 plots. It is dominated by tall forbs, characterized by the presence of one or more of the species Heracleum maximum, Rudbeckia occidentalis, or Thalictrum fendleri. Usually two of the three species will be abundant, although stands do occur with only one of the three species present. Other forbs commonly present include Achillea millefolium, Delphinium x occidentale, and Geranium viscosissimum. Graminoids are typically present but in lower abundance than all forbs combined. Graminoid species include Poa pratensis, Bromus vulgaris, Bromus carinatus, Carex hoodii, Elymus trachycaulus, and Festuca idahoensis.
Dynamics: No Data Available
Environmental Description: This rich meadow association occurs at elevations of 1700 to 2700 m (6450-8900 feet), on moderate to steep slopes (average 17%), up to 40%. It occurs on benches and lower slopes of moist pockets facing any aspect; the local topography is even to concave, and stands are generally moist throughout the summer. Soils are rich with clay and organic matter; textures include silty clay loam to sandy clay.
Geographic Range: This association is known only from northwestern Wyoming in Grand Teton National Park and the adjacent Bridger-Teton National Forest.
Nations: US
States/Provinces: MT, WY
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688738
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: G4
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.b Sedge species - Reedgrass species Montane Wet Meadow & Marsh Group | G521 | 2.C.4.Nb.5.b |
| Alliance | A3809 Common Cow-parsnip - California False Hellebore - Yellowcress species Wet Meadow Alliance | A3809 | 2.C.4.Nb.5.b |
| Association | CEGL001940 Common Cow-parsnip - Western Coneflower Wet Meadow | CEGL001940 | 2.C.4.Nb.5.b |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: No Data Available
- 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.
- Gregory, S. 1983. Subalpine forb community types of the Bridger-Teton National Forest, Wyoming. Unpublished completion report #36 for USDA Forest Service Cooperative Education Agreement (contract 40-8555-3-115). Bozeman, MT 63 pp.
- MTNHP [Montana Natural Heritage Program]. 2002b. List of ecological communities for Montana. Montana Natural Heritage Program, Montana State Library, Helena, MT.
- 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.