Login | Datasets | Logout
 

View Community Concepts - Detail

Quercus garryana / Ceanothus cuneatus / Festuca idahoensis Woodland | NatureServe Biotics 2019
  click to update datacart
Name: Quercus garryana / Ceanothus cuneatus / Festuca idahoensis Woodland
Reference: NatureServe Biotics 2019
Description: This is an open woodland association, characterized by a canopy of broad-leaved deciduous trees over a dense shrub layer of broad-leaved evergreen, sclerophyllous shrubs. <i>Quercus garryana</i> is the most common, and usually the only, tree present, although <i>Quercus kelloggii</i> does occur in more mesic microsites. The 1- to 2-m tall shrub <i>Ceanothus cuneatus</i> strongly dominates the shrub layer. Other sclerophyllous shrubs that may be present or common include <i>Arctostaphylos viscida, Toxicodendron diversilobum, Cercocarpus montanus var. glaber, Garrya fremontii, Frangula californica ssp. occidentalis</i>, and <i>Eriodictyon californicum</i>. The herbaceous layer is dominated by perennial bunchgrasses, the most important and characteristic being <i>Festuca idahoensis</i>. This association occurs in the foothills, on the edges of the interior valleys, of the Siskiyou Mountain region. The major valleys, those of the Rogue and Umpqua rivers, are the warmest and driest regions west of the Cascades in Oregon, due to the strong rainshadow effect of the Coast Ranges and Siskiyous. This region is characterized by Mediterranean climatic features, with a relatively low total annual precipitation (roughly 40-70 cm), a period of summer drought, and moderate differences between seasonal temperature extremes. Summers are hot and dry, while winters are mild and wet. It is found on slopes of all aspects except northerly, between about 330 and 1000 m elevation. Sites are typically foothill slopes just above the valley floors. Soils are likely to be moderately deep. <i>Ceanothus cuneatus</i> is dominant on the most xeric of sites in the interior valleys, while <i>Quercus garryana</i> requires somewhat more mesic conditions. 
Accession Code: urn:lsid:vegbank.org:commConcept:29839-{0837B4A3-79AC-4D28-B9CD-8D5FD7EBE9EF}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 09-Feb-1994 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.687031 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL000930
  Translated: Oregon White Oak / Buckbrush / Idaho Fescue Woodland
  Scientific: Quercus garryana / Ceanothus cuneatus / Festuca idahoensis Woodland
(convergence) and Synonyms:
(similar) CEGL000930
(similar) Quercus garryana / Ceanothus cuneatus / Festuca idahoensis Woodland
(similar) Quercus garryana / Ceanothus cuneatus / Festuca idahoensis Woodland