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Umbellularia californica - Quercus agrifolia / Toxicodendron diversilobum Forest | NatureServe Biotics 2019
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Name: Umbellularia californica - Quercus agrifolia / Toxicodendron diversilobum Forest
Reference: NatureServe Biotics 2019
Description: This association is only known from the vicinity of the Point Reyes National Seashore and Golden Gate National Recreation Area in California. Stands presumably of this association occur on neutral slope exposures on marine sediments and volcanic rocks in the East Bay Hills. Additional information about its global characteristics is not available without further inventory. This forest is characterized by codominance of <i>Quercus agrifolia</i> and <i>Umbellularia californica</i>, either of which can dominate any specific stand. <i>Arbutus menziesii</i> is often present at low cover values. Other trees such as <i>Pseudotsuga menziesii, Pinus muricata, Notholithocarpus densiflorus</i>, and/or <i>Aesculus californica</i> may also be present in small amounts. The tree canopy is continuous and usually between 10 and 20 m of height. <i>Corylus cornuta</i> is often the most common tall shrub, while <i>Toxicodendron diversilobum</i> dominates the shrub stratum between 1-2 m. <i>Rubus parviflorus, Polystichum munitum, Heteromeles arbutifolia</i>, and <i>Baccharis pilularis</i> may also occur in the shrub layer. The herbaceous layer is diverse and may be intermittent to continuous. Typical herbaceous species include <i>Polystichum munitum, Clinopodium douglasii, Stachys ajugoides, Pteridium aquilinum</i>, and/or <i>Athyrium filix-femina</i>. This association is more xeric than ~<i>Umbellularia californica / Polystichum munitum</i> Forest (CEGL003174)$$. 
Accession Code: urn:lsid:vegbank.org:commConcept:32058-{154A62ED-C228-44E6-A39A-79D25B0AD943}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 05-May-2010 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.689641 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL003175
  Translated: California Laurel - California Live Oak / Pacific Poison-oak Forest
  Scientific: Umbellularia californica - Quercus agrifolia / Toxicodendron diversilobum Forest
(convergence) and Synonyms:
(similar) Umbellularia californica - Quercus agrifolia / Toxicodendron diversilobum Forest
(similar) Umbellularia californica - Quercus agrifolia / Toxicodendron diversilobum Forest