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A.508 | EcoArt 2002
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Name: A.508
Reference: EcoArt 2002
Description: This woodland alliance of California's foothills and mountains is found on ridges and upper slopes on infertile soils. Some stands are found on soils derived from ultramafic parent materials. Stands occur from 180-2000 m of elevation, and sites are usually quite xeric. The unusually large range of this alliance is indicative of its tolerance to varied environmental factors such as precipitation. In the southern reaches of the range, this alliance may receive fewer than 60 cm of rain per year; at the northern extreme perhaps as much as 150 cm per year. As with most California alliances, this alliance is adapted to a Mediterranean climate with the bulk of precipitation falling between November and May. Summers are warm and dry. ~Pinus attenuata$ is the sole or dominant tree in the canopy. Other trees present may include ~Quercus chrysolepis, Quercus wislizeni, Pinus coulteri, Pinus sabiniana, Pinus contorta, Pinus radiata$, and ~Pinus monticola$. Shrubs may be infrequent to continuous, and could include ~Arctostaphylos patula, Arctostaphylos columbiana, Quercus vacciniifolia$, and ~Lithocarpus densiflorus$. 
Accession Code: VB.CC.2153.A508
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.4.N.a
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: PINUS ATTENUATA WOODLAND ALLIANCE
  Code: A.508
  Common: Knobcone Pine Woodland Alliance
(convergence) and Synonyms:
(undetermined) Pinus attenuata Woodland Alliance