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Pinus ponderosa / Quercus gambelii Woodland | NatureServe Biotics 2019
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Name: Pinus ponderosa / Quercus gambelii Woodland
Reference: NatureServe Biotics 2019
Description: This major ponderosa pine woodland is widespread and has been reported from foothills, mountains and plateaus from Colorado to Texas, west to Arizona and Nevada. Elevation ranges from 1830-2800 m (6000-9200 feet). Stands often occur along drainages, on lower and middle slopes and benches on all aspects. Soils are typically shallow and rocky, ranging from sandy loams to clay loams. At El Malpais National Monument in western New Mexico, it generally occurs on rolling lava plateaus, steep sideslopes of volcano craters, on gentle toeslopes of low cinder hills, or on sandstone outcrops. Substrates are derived from basalt or sandstone, with rock, gravel, and occasional patches of sandy soil. Litter is often abundant in patches. <i>Pinus ponderosa</i> dominates or sometimes codominates the sparse to moderately dense tree canopy with <i>Pinus edulis</i> and <i>Juniperus</i> spp. <i>Pseudotsuga menziesii</i> is accidental and <i>Abies concolor</i> is not present. <i>Quercus gambelii</i> dominates both the subcanopy (tree form, if present) and the typically moderately dense tall-shrub layer consisting of dense clumps of oak. <i>Quercus gambelii</i> must have at least 5% cover, but there is frequently over 25%. At higher elevations, the <i>Quercus gambelii</i> are more treelike, and <i>Symphoricarpos oreophilus</i> will be present with significant cover in the short-shrub layer. At lower elevations, scattered <i>Artemisia tridentata ssp. vaseyana, Pinus edulis</i>, and <i>Juniperus osteosperma</i> are often present. At El Malpais, <i>Forestiera pubescens</i> is the most commonly occurring shrub, along with occasional <i>Ribes cereum</i>. Other common shrub species may include <i>Amelanchier</i> spp., <i>Mahonia repens</i>, and <i>Rosa woodsii</i>. The herbaceous layer is generally sparse and composed of mostly graminoids and scattered forbs. 
Accession Code: urn:lsid:vegbank.org:commConcept:29779-{2762E9B2-9BD5-41BE-BDB6-FC48C27F68E7}
Plot-observations of this Community Concept: 11
      Party Perspective according to: NatureServe (organization)
Perspective from: 18-Oct-2018 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.684187 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL000870
  Translated: Ponderosa Pine / Gambel Oak Woodland
  Scientific: Pinus ponderosa / Quercus gambelii Woodland
(convergence) and Synonyms:
(similar) CEGL000870
(similar) Pinus ponderosa / Quercus gambelii Woodland
(similar) Pinus ponderosa / Quercus gambelii Woodland