Login | Datasets | Logout
 

View Community Concepts - Detail

A.1420 | EcoArt 2002
  click to update datacart
Name: A.1420
Reference: EcoArt 2002
Description: This alliance has been described from wet meadows, streambanks, and lakeshores in the mountains of Oregon, Nevada, Colorado and Montana, and likely occurs in similar habitats throughout the western U.S. Stands also occur in wet areas in alpine tundra. Soils are generally poorly drained. Saturated soils retard plant decomposition and favor organic matter accumulation. Flooding during spring runoff is common, and water tables remain within the root zone throughout the summer. Vegetation within this alliance is characterized by an herbaceous layer dominated or codominated by ~Carex scopulorum$. Many other graminoids may be present to common including ~Agrostis humilis (= Agrostis thurberiana), Alopecurus alpinus, Carex phaeocephala, Carex jonesii, Carex illota, Carex nigricans, Deschampsia caespitosa$, and ~Eleocharis quinqueflora (= Eleocharis pauciflora)$. Forb cover may codominate the herbaceous layer. Characteristic species include ~Caltha leptosepala, Mimulus primuloides, Ligusticum filicinum, Saxifraga odontoloma, Oreostemma alpigenum (= Aster alpigenus), Parnassia fimbriata, Dodecatheon jeffreyi, Pedicularis groenlandica$, and~Equisetum arvense$. Scattered shrubs are occasionally present, such as ~Salix commutata, Salix planifolia$, and ~Kalmia microphylla$. Diagnostic of this herbaceous alliance is the dominance or codominance of ~Carex scopulorum$ and the presence of surface water for extended periods during the growing season. 
Accession Code: VB.CC.1196.A1420
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Mar-2005
     
  • status: accepted
  • Community's Parent: V.A.5.N.k
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Code: A.1420
  Scientific: CAREX SCOPULORUM SEASONALLY FLOODED HERBACEOUS ALLIANCE
  Common: Holm's Rocky Mountain Sedge Seasonally Flooded Herbaceous Alliance
(convergence) and Synonyms:
(undetermined) Carex scopulorum Seasonally Flooded Herbaceous Alliance