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Pseudotsuga menziesii / Umbellularia californica / Frangula californica ssp. californica Forest | NatureServe Biotics 2019
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Name: Pseudotsuga menziesii / Umbellularia californica / Frangula californica ssp. californica Forest
Reference: NatureServe Biotics 2019
Description: This forest association is currently only known from Point Reyes National Seashore in California, and the following description is based on occurrences there. Additional information will be added as it becomes available. This forest is found on moderate to steep slopes throughout the inland valleys of the Point Reyes/Golden Gate planning area. Stands grow from the lower slope to ridge positions on any aspect, and prefer moderately fine to coarse sandy clay loams. This forest forms a two-tiered canopy with <i>Pseudotsuga menziesii</i> dominating the upper canopy. The top tier is intermittent and generally about 30 m or greater in height. The lower tree canopy is usually dominated by <i>Umbellularia californica</i>, though this species' cover varies widely from stand to stand. <i>Frangula californica ssp. californica</i> dominates the shrub layer and sometimes completely replaces <i>Umbellularia californica</i> in the short-tree stratum. Other shrubs commonly found in this forest include <i>Toxicodendron diversilobum, Sambucus racemosa, Polystichum munitum, Pteridium aquilinum, Baccharis pilularis, Artemisia californica, Rubus ursinus</i>, and/or <i>Rubus parviflorus</i>. The herbaceous layer is open to intermittent and often includes <i>Stachys ajugoides, Erechtites minimus</i>, and/or <i>Maianthemum stellatum</i>. Generally this is a slightly more xeric forest than ~<i>Pseudotsuga menziesii / Umbellularia californica / Polystichum munitum</i> Forest (CEGL003168)$$, with most stands occurring on convex or linear slopes or slopes with more southerly aspects. 
Accession Code: urn:lsid:vegbank.org:commConcept:32050-{386828CE-5667-4D18-9C75-237D5B8D3522}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 05-May-2010 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.687674 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL003167
  Translated: Douglas-fir / California Laurel / California Buckthorn Forest
  Scientific: Pseudotsuga menziesii / Umbellularia californica / Frangula californica ssp. californica Forest
(convergence) and Synonyms:
(similar) Pseudotsuga menziesii / Umbellularia californica / Frangula californica ssp. californica Forest
(similar) Pseudotsuga menziesii / Umbellularia californica / Frangula californica ssp. californica Forest