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CEGL003167 Pseudotsuga menziesii / Umbellularia californica / Frangula californica ssp. californica Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Douglas-fir / California Laurel / California Buckthorn Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: 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 Pseudotsuga menziesii 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 Umbellularia californica, though this species'' cover varies widely from stand to stand. Frangula californica ssp. californica dominates the shrub layer and sometimes completely replaces Umbellularia californica in the short-tree stratum. Other shrubs commonly found in this forest include Toxicodendron diversilobum, Sambucus racemosa, Polystichum munitum, Pteridium aquilinum, Baccharis pilularis, Artemisia californica, Rubus ursinus, and/or Rubus parviflorus. The herbaceous layer is open to intermittent and often includes Stachys ajugoides, Erechtites minimus, and/or Maianthemum stellatum. Generally this is a slightly more xeric forest than ~Pseudotsuga menziesii / Umbellularia californica / Polystichum munitum Forest (CEGL003168)$$, with most stands occurring on convex or linear slopes or slopes with more southerly aspects.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: At Point Reyes National Seashore, this is a somewhat drier community than ~Pseudotsuga menziesii / Umbellularia californica / Polystichum munitum Forest (CEGL003168)$$. It occurs on more southerly or neutral exposures and on upper slopes, while the other association is more strongly tied to mesic northeast-facing or concave slopes.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: No Data Available
Dynamics: No Data Available
Environmental Description: No Data Available
Geographic Range: This forest association is currently only known from Point Reyes National Seashore in California. Additional range information will be added as it becomes available.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.687674
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G4
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.1 Warm Temperate Forest & Woodland Formation | F018 | 1.B.1 |
| Division | 1.B.1.Nc Californian Forest & Woodland Division | D007 | 1.B.1.Nc |
| Macrogroup | 1.B.1.Nc.1 California Live Oak - California Laurel - Western Cypress species Forest & Woodland Macrogroup | M009 | 1.B.1.Nc.1 |
| Group | 1.B.1.Nc.1.c Douglas-fir - Tanoak - Pacific Madrone Forest Group | G208 | 1.B.1.Nc.1.c |
| Alliance | A0106 Douglas-fir - Tanoak Forest Alliance | A0106 | 1.B.1.Nc.1.c |
| Association | CEGL003167 Douglas-fir / California Laurel / California Buckthorn Forest | CEGL003167 | 1.B.1.Nc.1.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Pseudotsuga menziesii - Umbellularia californica / Frangula californica (Sawyer et al. 2009) [82.200.70]
= Pseudotsuga menziesii / Umbellularia californica / Rhamnus californica Association (Schirokauer et al. 2003)
= Pseudotsuga menziesii / Umbellularia californica / Rhamnus californica Association (Schirokauer et al. 2003)
- Sawyer, J. O., T. Keeler-Wolf, and J. Evens. 2009. A manual of California vegetation. Second edition. California Native Plant Society, Sacramento CA. 1300 pp.
- Schirokauer, D., T. Keeler-Wolf, J. Meinke, and P. van der Leeden. 2003. Plant community classification and mapping project. Point Reyes National Seashore, Golden Gate National Recreation Area, San Francisco Water Department Watershed Lands, Mount Tamalpais, Tomales Bay, and Samuel P. Taylor State Parks. Final report. California State Department of Fish and Game, Wildlife and Habitat Data Analysis Branch, Sacramento, National Park Service, Point Reyes Station, and Aerial Information Systems, Redlands, CA. 82 pp. [http://biology.usgs.gov/npsveg/pore_goga/index.html]
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.