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A.1468 | EcoArt 2002
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Name: A.1468
Reference: EcoArt 2002
Description: This herbaceous wetland alliance occurs on lakeshores, river floodplains, and in wet meadows in western and south-central Montana, and the tidally influenced overflow plain of the Columbia River in western Oregon and Washington. Elevations extend just above the tidal influence zone in coastal habitats to 2500 m in the subalpine forests of Montana. Stands occur in low-lying areas with prolonged seasonal flooding that maintain saturated soils throughout the growing season. Soils are heavy textured, often with a thick organic layer, and are derived from alluvium. The vegetation is characterized by nearly pure stands of the perennial graminoid ~Carex aperta$ (70-90% cover) with lesser amounts of ~Agrostis$ spp., ~Poa palustris, Argentina anserina, Bidens cernua, Bidens frondosa, Ludwigia palustris, Polygonum amphibium$, and ~Erysimum cheiranthoides$. Adjacent stands include forests dominated by ~Pseudotsuga menziesii$ at lower elevations and ~Abies lasiocarpa$ or ~Picea engelmannii$ in the subalpine zone, and a variety of riparian stands. 
Accession Code: VB.CC.1240.A1468
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.m
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: CAREX APERTA SATURATED HERBACEOUS ALLIANCE
  Code: A.1468
  Common: Columbian Sedge Saturated Herbaceous Alliance
(convergence) and Synonyms:
(undetermined) Carex aperta Saturated Herbaceous Alliance