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Quercus garryana / Festuca idahoensis Woodland | Western Ecology Working Group of...
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Name: Quercus garryana / Festuca idahoensis Woodland
Reference: Western Ecology Working Group of...
Description: This association is based on field observations and six releves. The association mostly occurs at lower conifer treeline within and below the Pinus ponderosa zone. It typically occurs as small balds in Pseudotsuga menziesii, and rarely Abies grandis, forests on xeric sites, and on open, northerly slopes within communities in the Festuca idahoensis - Hieracium cynoglossoides steppe zone. These communities are shrub-free with only scattered Ceanothus integerrimus or Symphoricarpos albus in moist variants or Purshia tridentata in dry/hot variants. Quercus garryana trees are scattered with cover of 10-65%; conifers may be found singly or as invaders. Festuca idahoensis is the dominant grass with 10-50% cover between the oaks while Elymus glaucus predominates under the oaks. Other graminoids include Pseudoroegneria spicata, Carex geyeri, Koeleria macrantha, Achnatherum occidentale (= Stipa occidentalis), and Poa spp. Forb diversity is relatively low. Exotic annual grasses (Bromus rigidus, Bromus tectorum, Cynosurus echinatus, Ventenata dubia) are a common feature particularly in grazed examples. 
Accession Code: VB.CC.18540.QUERCUSGARRYANA
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Nov-2014
      Names:   Translated: Oregon White Oak / Idaho Fescue Woodland
  UID: ELEMENT_GLOBAL.2.683302 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL000551
  Scientific: Quercus garryana / Festuca idahoensis Woodland
  Common: Oregon White Oak / Fescue Sparse Woodland
(convergence) and Synonyms:
(undetermined) Quercus garryana / Festuca idahoensis Woodland