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Pinus contorta Temporarily Flooded Woodland Alliance | Western Ecology Working Group of...
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Name: Pinus contorta Temporarily Flooded Woodland Alliance Reference: Western Ecology Working Group of... 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.24665.PINUSCONTORTATE Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 01-May-2019
	status: accepted This Community's Level: Alliance This Community's Children: [none]		Names:   Scientific: Pinus contorta Temporarily Flooded Woodland Alliance   Translated: Lodgepole Pine Temporarily Flooded Woodland Alliance   UID: HIGHER_CLASS_UNIT.2.126048 NatureServe Explorer   Code: A.562