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Quercus sadleriana - Notholithocarpus densiflorus var. echinoides Shrubland Alliance | NatureServe Biotics 2019
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Name: Quercus sadleriana - Notholithocarpus densiflorus var. echinoides Shrubland Alliance
Reference: NatureServe Biotics 2019
Description: This alliance consists of shrublands dominated by <i>Quercus sadleriana</i> and/or <i>Notholithocarpus densiflorus var. echinoides</i>. Other shrubs may include <i>Arctostaphylos nevadensis, Arctostaphylos patula, Ceanothus cordulatus, Ceanothus cuneatus, Ceanothus velutinus, Holodiscus discolor, Prunus emarginata</i>, and <i>Symphoricarpos mollis</i>. Emergent conifers such as <i>Abies lowiana, Pinus lambertiana, Pinus ponderosa</i>, or <i>Pseudotsuga menziesii</i> may be present at low cover. The herbaceous layer is sparse. This alliance is found in the Klamath-Siskiyou mountains of southern Oregon and California, as well as along the foothills of the central Sierra Nevada. Topography and substrates are varied but tend towards skeletal, thin, rocky soils derived from granitics, mafic, and ultramafic. Most stands establish after fire or in areas with a history of logging. Climate has long, dry summers and wet winters. Average yearly precipitation totals vary from roughly 200 cm in the northern end of the range to 40 cm in the southern Sierra Nevada. 
Accession Code: urn:lsid:vegbank.org:commConcept:39326-{2A1034BB-06D4-47C0-A580-8581A109092F}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 18-Dec-2014 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.932832 NatureServe ExplorerNatureServe Explorer logo
  Code: A4117
  Translated: Deer Oak - Tanoak Shrubland Alliance
  Common: Californian Disturbance-Driven Montane Scrub Oak Chaparral
  Scientific: Quercus sadleriana - Notholithocarpus densiflorus var. echinoides Shrubland Alliance