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Abies concolor - Pinus ponderosa / Arctostaphylos patula - Mahonia spp. Forest | Western Ecology Working Group of...
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Name: Abies concolor - Pinus ponderosa / Arctostaphylos patula - Mahonia spp. Forest
Reference: Western Ecology Working Group of...
Description: This forest association is found on flat to convex slopes and major ridges in Oregon's eastern Cascades and may extend into adjacent California. Elevations range between 1525-1980 m (5000-6500 feet). Occurrences are found on all aspects and a variety of slopes (5-40%). Soils are coarse-textured sandy loam or sandy clay loam. <i>Pinus ponderosa</i> and <i>Abies concolor</i> dominate the overstory with only occasional <i>Pinus contorta</i>. The shrub layer consists of <i>Arctostaphylos patula, Mahonia</i> spp., and <i>Symphoricarpos mollis</i>. The understory is typified by <i>Elymus elymoides ssp. elymoides (= Sitanion hystrix)</i> and <i>Poa wheeleri, </i>with <i>Fragaria</i> sp. common. Stands become codominated by <i>Abies concolor</i> when naturally frequent fire cycles are prolonged, and hence this association may be a result of fire suppression in this region. Certainly fire suppression has lead to an increase in area of the type. 
Accession Code: VB.CC.34627.CEGL000017
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.2.687217 NatureServe ExplorerNatureServe Explorer logo
  Translated: White Fir - Ponderosa Pine / Greenleaf Manzanita - Barberry species Forest
  Scientific: Abies concolor - Pinus ponderosa / Arctostaphylos patula - Mahonia spp. Forest
  Code: CEGL000017