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A.562 | EcoArt 2002
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Name: A.562
Reference: EcoArt 2002
Description: These riparian woodlands have been described from valleys, drainages and basins in the mountains and highlands of central and northeastern Oregon. Elevations range from 1220-2070 m. Stands are often relatively narrow, occurring in floodplains, on lakeshores and on low terraces along stream channels or near springs. Sites are flat to gently sloping, temporarily flooded with moderately deep to deep, alluvial soils. Soils range from sandy loams to silt loams and may have a significant organic layer. They are saturated in the spring then dry out by late summer, with the water table often dropping about 1 m. Parent materials are pumice alluvium or air-laid pumice that blanketed this area. Stands have a moderately dense to dense tree canopy that ranges from 40-85% cover, dominated by ~Pinus contorta$. The sparse short-shrub layer consists of scattered clumps of ~Spiraea douglasii, Salix geyeriana, Vaccinium boreale$, or ~Ribes$ spp. The herbaceous layer is typically dominated by the perennial graminoids ~Carex angustata$ or ~Carex aquatilis$, but other graminoids occur such as several other species of ~Carex, Calamagrostis$ spp., ~Deschampsia caespitosa, Elymus glaucus$, and ~Juncus balticus$. Forb species are often diverse and may include ~Achillea millefolium, Dodecatheon jeffreyi, Fragaria virginiana, Galium boreale, Geum macrophyllum, Packera pseudaurea (= Senecio pseudaureus)$, and ~Trifolium longipes$. Adjacent stands include upland conifer forests dominated by ~Pinus contorta$, and various herbaceous and shrub wetlands dominated by species of ~Carex$ or ~Salix$. 
Accession Code: VB.CC.2206.A562
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: II.A.4.N.d
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: PINUS CONTORTA TEMPORARILY FLOODED WOODLAND ALLIANCE
  Code: A.562
  Common: Lodgepole Pine Temporarily Flooded Woodland Alliance
(convergence) and Synonyms:
(undetermined) Pinus contorta Temporarily Flooded Woodland Alliance