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Pinus ponderosa / Purshia tridentata / Festuca idahoensis Woodland | Western Ecology Working Group of...
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Name: Pinus ponderosa / Purshia tridentata / Festuca idahoensis Woodland
Reference: Western Ecology Working Group of...
Description: This association is a widespread woodland community which is a dominant part of the landscape in the eastern Cascades, and occurs as patches throughout the Blue Mountains, and in Idaho, northeastern Washington and Montana. Elevations vary between 780-1740 m (2550-5700 feet) on all aspects with slopes usually less than 35%. Soils are a mixture of sand, loam, and silt. These woodlands are dominated by Pinus ponderosa (5-60% cover) with occasional Pinus contorta, Juniperus occidentalis, or Cercocarpus ledifolius (less than 10% cover). The shrub layer is characterized by Purshia tridentata up to 50% cover with occasional Arctostaphylos patula, Ericameria bloomeri, and Ceanothus integerrimus. The herbaceous layer is usually dominated by Festuca idahoensis (5-40% cover) with minor herbs such as Elymus elymoides ssp. elymoides (= Sitanion hystrix), Achnatherum occidentale ssp. occidentale (= Stipa occidentalis), Lupinus spp., Achillea millefolium, and Fragaria virginiana. Fires have historically maintained Pinus ponderosa while thinning fire-sensitive subordinate trees and shrubs. 
Accession Code: VB.CC.20378.PINUSPONDEROSAP
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Nov-2014
      Names:   Translated: Ponderosa Pine / Bitterbrush / Idaho Fescue Woodland
  UID: ELEMENT_GLOBAL.2.684286 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL000195
  Scientific: Pinus ponderosa / Purshia tridentata / Festuca idahoensis Woodland
(convergence) and Synonyms:
(undetermined) Pinus ponderosa / Purshia tridentata / Festuca idahoensis Woodland