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CEGL001921 Phleum alpinum - Carex aquatilis Wet Meadow

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Alpine Timothy - Water Sedge Wet Meadow

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This herbaceous vegetation type has been described from wetlands on the Yellowstone Plateau of northwestern Wyoming. It occupies mesic and subirrigated, mineral soils of sandy to medium texture, around seeps and on valley floors. The herbaceous vegetation may contain a variety of graminoids and forbs. Carex aquatilis, Phleum alpinum, Deschampsia cespitosa, Potentilla diversifolia, and Symphyotrichum foliaceum are always present, and a number of other species may be abundant, including Antennaria corymbosa, Calamagrostis canadensis, and Carex microptera.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: This association is a based on a description, without plot data, from the Phleum alpinum - Carex aquatilis habitat type on the Yellowstone Plateau (Mattson 1984). A number of the species with high constancy and often substantial cover in this vegetation type also have high constancy and may be abundant in ~Phleum alpinum - Carex microptera Wet Meadow (CEGL001922)$$ and ~Phleum alpinum - Elymus trachycaulus Meadow (CEGL001923)$$. All of these associations have been described from wetland habitat types on the Yellowstone Plateau. The status of these 3 vegetation types as separate associations or as variants of the same association must be determined.

Similar NVC Types: No Data Available
note: No Data Available

Physiognomy and Structure: No Data Available

Floristics: No Data Available

Dynamics:  No Data Available

Environmental Description:  No Data Available

Geographic Range: This association has been named only from the Yellowstone Plateau of northwestern Wyoming, but additional information may show that it occurs elsewhere as well.

Nations: US

States/Provinces:  WY




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: G2Q

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Phleum alpinum - Carex aquatilis Habitat Type (Mattson 1984)

Concept Author(s): D.J. Mattson (1984)

Author of Description: G.P. Jones

Acknowledgements: No Data Available

Version Date: 11-26-97

  • 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.
  • Mattson, D. J. 1984. Classification and environmental relationships of wetland vegetation in central Yellowstone National Park. Unpublished thesis, University of Idaho, Moscow. 409 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.