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A.1698 | EcoArt 2002
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Name: A.1698
Reference: EcoArt 2002
Description: This alliance occurs in subalpine and alpine areas in the Rocky Mountains. Elevations range from 2850-3500 m. Landforms that support these types are seeps, streamsides, springs, and wet meadows with high winter snow accumulation. Types can occur on slopes up to 30%. This type rarely occurs on eastern slopes, but is common on western slopes. Soils are poorly drained alluvium. The substrate is saturated to the surface for extended periods. Commonly there is standing water from underground seeps or subsurface flows. A dense, conspicuous layer of ~Caltha leptosepala$ dominates the forb stratum with 60-100% cover. Many graminoids and forbs that tolerate long-term soil saturation may also be present. ~Carex aquatilis$ and ~Deschampsia caespitosa$ are very common and typically codominant with ~Caltha leptosepala$. Other forbs may include ~Pedicularis groenlandica , Stellaria umbellata, Swertia perennis, Polygonum bistortoides, Ranunculus alismifolius, Senecio crassulus$, and ~Rhodiola rhodantha (= Sedum rhodanthum)$. Other graminoids can include ~Phleum alpinum, Calamagrostis canadensis, Carex scopulorum$, and ~Carex phaeocephala$. In forest openings this alliance is found with ~Salix planifolia$ shrublands and ~Carex aquatilis$ and ~Senecio triangularis$ meadows. On high-elevation peatlands it occurs with stands of ~Eleocharis quinqueflora$ and ~Salix planifolia$ shrublands. 
Accession Code: VB.CC.1446.A1698
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.B.2.N.f
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Code: A.1698
  Scientific: CALTHA LEPTOSEPALA SATURATED HERBACEOUS ALLIANCE
  Common: White Marsh-marigold Saturated Herbaceous Alliance
(convergence) and Synonyms:
(undetermined) Caltha leptosepala Saturated Herbaceous Alliance