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Parkinsonia microphylla Shrubland Alliance | Western Ecology Working Group of...
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Name: Parkinsonia microphylla Shrubland Alliance
Reference: Western Ecology Working Group of...
Description: This shrubland alliance occurs in the Sonoran and Colorado deserts on rocky slopes of mountain, hills, and mesas at elevations below 1220 m. Sites have gentle to moderately steep, southwest-facing slopes. Parent material is usually gravelly alluvium derived from basalt. Substrates are generally coarse-textured, shallow, gravelly clay loams. Caliche is often present on the soil surface and the undersides of rocks. This alliance has a sparse to moderately dense canopy codominated by Parkinsonia microphylla and Larrea tridentata with Fouquieria splendens less prominent. There is high diversity of shrubs and dwarf-shrubs such as Ayenia microphylla, Calliandra eriophylla, Janusia gracilis, Lycium berlandieri, and Menodora scabra. The very sparse herbaceous layer is composed of perennial grasses and forbs with annuals seasonally present to occasionally abundant. Common forbs include Allionia incarnata, Siphonoglossa longiflora, and Sphaeralcea ambigua. Cacti are present and may include Echinocereus engelmannii, and Opuntia spp. Diagnostic of this desert shrubland alliance is the codominance of Parkinsonia microphylla and Larrea tridentata with no Carnegia gigantea. 
Accession Code: VB.CC.27243.PARKINSONIAMICR
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: Parkinsonia microphylla Shrubland Alliance
  Translated: Yellow Paloverde Shrubland Alliance
  UID: HIGHER_CLASS_UNIT.2.125846 NatureServe ExplorerNatureServe Explorer logo
  Code: A.883