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Pseudotsuga menziesii - Abies concolor - Calocedrus decurrens Forest | Western Ecology Working Group of...
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Name: Pseudotsuga menziesii - Abies concolor - Calocedrus decurrens Forest
Reference: Western Ecology Working Group of...
Description: This association occurs throughout the northern Sierra Nevada and southern Cascades of California at least as far south as Yosemite Valley. Stands of this forest are found at low elevations (640-1460 m [2100-4800 feet]) at cool, moist sites with humid air. These sites tend to occur on north- or northeast-facing, gentle to moderately steep (12-80%), lower or mid slopes. Sites are often adjacent to perennial streams generally occupying small areas. Soils are moderately deep to deep in metamorphic or volcanic substrates. Coarse fragments tend to be higher in this association. Fire is infrequent, with low to medium intensities and variable spread. Stands of this forest form a dense, multi-layered overstory of <i>Pseudotsuga menziesii, Abies concolor</i>, and <i>Calocedrus decurrens</i>. <i>Corylus cornuta</i> is in the shrub layer, and dense patches of both or either <i>Adenocaulon bicolor</i> or <i>Trichostema lanceolatum</i> are in the herb layer. <i>Pseudotsuga menziesii</i> dominates and occasionally codominates with <i>Abies concolor</i>. <i>Calocedrus decurrens, Pinus lambertiana</i>, and occasionally <i>Pinus ponderosa</i> are minor associates. Infrequently, <i>Taxus brevifolia</i> and <i>Torreya californica</i> are present. <i>Pseudotsuga menziesii</i> dominate the regeneration, but <i>Abies concolor</i> and <i>Calocedrus decurrens</i> can also be high or dominant. <i>Quercus kelloggii, Pinus lambertiana</i>, and <i>Cornus nuttallii</i> are common in low amounts. <i>Quercus chrysolepis</i> occurs in the overstory and midstory on sites with limiting soil conditions, either shallow and stony sites with limited rootability or very high coarse fragments. <i>Corylus cornuta</i> forms a tall-shrub layer of variable cover. The herb layer is well-developed with dense patches dominated by <i>Adenocaulon bicolor</i> and <i>Trichostema lanceolatum</i>. 
Accession Code: VB.CC.32682.CEGL005813
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.2.685253 NatureServe ExplorerNatureServe Explorer logo
  Translated: Douglas-fir - White Fir - Incense-cedar Forest
  Scientific: Pseudotsuga menziesii - Abies concolor - Calocedrus decurrens Forest
  Code: CEGL005813