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A.588 | EcoArt 2002
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Name: A.588
Reference: EcoArt 2002
Description: Woodlands included in this alliance occur in southern California, and possibly southwestern Arizona and adjacent Mexico. Elevation ranges from -10- to 500 m. The climate is arid and subtropical, without hard freezes during the winter. Amount and season of precipitation are highly variable from year to year. In the more arid Colorado Desert, stands are generally restricted to the margins of washes and braided, unstable channels on bajadas, but may occur on terraces if the water table is not deep. Sites are generally flat or gently sloping, and the vegetation occurs on all aspects. Parent material is usually sandy or gravelly alluvium. Substrates are coarse-textured, but may include gravelly silty loams. The soils are generally not saline. These semi-riparian woodlands usually occur as two strips of vegetation along the banks of a broad, sandy wash bed. Stands have moderate to dense cover dominated by the xeromorphic evergreen and deciduous trees ~Parkinsonia florida$ and ~Olneya tesota$. Other associated shrubs and trees may include ~Ambrosia$ spp., ~Acacia greggii, Chilopsis linearis, Hymenoclea salsola, Lycium$ spp., ~Parkinsonia microphylla, Prosopis glandulosa, Prosopis pubescens, Psorothamnus spinosus$, and ~Ziziphus obtusifolia$. Perennial herbaceous cover is sparse, but annual grasses and forbs can be seasonally abundant. These woodlands are surrounded by a matrix of desert shrubland dominated by ~Larrea tridentata$ or ~Ambrosia$ spp. 
Accession Code: VB.CC.2232.A588
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Mar-2005
     
  • status: accepted
  • Community's Parent: II.A.5.N.a
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: PARKINSONIA FLORIDA - OLNEYA TESOTA WOODLAND ALLIANCE
  Code: A.588
  Common: Blue Paloverde - Desert-ironwood Woodland Alliance
(convergence) and Synonyms:
(undetermined) Parkinsonia florida - Olneya tesota Woodland Alliance