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Pinus ponderosa / Purshia tridentata / Carex rossii Woodland | Western Ecology Working Group of...
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Name: Pinus ponderosa / Purshia tridentata / Carex rossii Woodland
Reference: Western Ecology Working Group of...
Description: This woodland is found in the southern Blue Mountains, the Ochoco Range, and southeastern Oregon Cascades. Elevations are between 1020-1980 m (3350-6500 feet) with generally low steepness (0-50%) and a variety of aspects, but favoring southerly exposures in the Blue Mountains. Soils are sandy loams, silt, and loamy sand. The overstory is dominated by <i>Pinus ponderosa</i> (25-53% cover) with occasional <i>Juniperus occidentalis</i> (0-4% cover). The shrub layer is characterized by <i>Purshia tridentata</i> (5-37% cover) and occasional <i>Mahonia repens</i> (0-36% cover). The herbaceous layer is usually dominated by <i>Carex rossii</i> with 10-46% cover. Other herbaceous species include <i>Achnatherum occidentale ssp. occidentale (= Stipa occidentalis)</i> (3-10% cover) and <i>Elymus elymoides ssp. elymoides (= Sitanion hystrix)</i> (5-10% cover). Occasionally, <i>Achillea millefolium</i> and <i>Fragaria virginiana</i> are present. This association is well-adapted to periodic surface fires which promote regeneration of <i>Pinus ponderosa</i>. It occupies warm and moist sites as compared to other <i>Pinus ponderosa / Purshia tridentata</i> associations. 
Accession Code: VB.CC.33187.CEGL000194
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 17-Nov-2014 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: association
  • This Community's Children: [none]
Names:   UID: ELEMENT_GLOBAL.2.688843 NatureServe ExplorerNatureServe Explorer logo
  Translated: Ponderosa Pine / Antelope Bitterbrush / Ross' Sedge Woodland
  Scientific: Pinus ponderosa / Purshia tridentata / Carex rossii Woodland
  Code: CEGL000194