Print Report

CEGL003168 Pseudotsuga menziesii / Umbellularia californica / Polystichum munitum Forest

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Douglas-fir / California Laurel / Western Swordfern 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 association grows on the middle to upper third of moderate slopes. Aspects are mostly north and east. Stands are found in the inland valleys and prefer medium to fine silt or sandy loams. This forest forms a two-tiered canopy with Pseudotsuga menziesii dominating the upper canopy. The top tier is intermittent, and generally less than 35 m in height. The lower tree canopy is dominated by Umbellularia californica, though Notholithocarpus densiflorus, Quercus agrifolia, and/or Aesculus californica may provide minor cover. The shrub layer is open with only minor cover contributed by Vaccinium ovatum, Frangula californica ssp. californica, Rubus ursinus, and/or Rubus parviflorus. Polystichum munitum is the dominant understory species. Other common herbaceous associates may include Pteridium aquilinum, Iris douglasiana, and/or Stachys ajugoides. Generally this is a more mesic forest than ~Pseudotsuga menziesii / Umbellularia californica / Frangula californica ssp. californica Forest (CEGL003167)$$. It occurs on concave slopes or on more northerly aspects than that association.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: No Data Available

Similar NVC Types: No Data Available
note: No Data Available

Physiognomy and Structure: No Data Available

Floristics: This forest forms a two-tiered canopy with Pseudotsuga menziesii dominating the upper canopy. The top tier is intermittent, and generally less than 35 m in height. The lower tree canopy is dominated by Umbellularia californica, though Notholithocarpus densiflorus (= Lithocarpus densiflorus), Quercus agrifolia, and/or Aesculus californica may provide minor cover. The shrub layer is open with only minor cover contributed by Vaccinium ovatum, Frangula californica ssp. californica, Rubus ursinus, and/or Rubus parviflorus. Polystichum munitum is the dominant understory species. Other common herbaceous associates may include Pteridium aquilinum, Iris douglasiana, and/or Stachys ajugoides.

Dynamics:  No Data Available

Environmental Description:  This association grows on the middle to upper third of moderate slopes. Aspects are mostly north and east. Stands are found in the inland valleys and prefer medium to fine silt or sandy loams.

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, OR




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: G4

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Pseudotsuga menziesii - Umbellularia californica / Polystichum munitum (Sawyer et al. 2009) [82.200.69]
= Pseudotsuga menziesii / Umbellularia californica / Polystichum munitum Association (Schirokauer et al. 2003) [pi code 02011]

Concept Author(s): Schirokauer et al. (2003)

Author of Description: T. Keeler-Wolf

Acknowledgements: No Data Available

Version Date: 05-05-10

  • Kagan, J. S., J. A. Christy, M. P. Murray, and J. A. Titus. 2004. Classification of native vegetation of Oregon. January 2004. Oregon Natural Heritage Information Center, Portland. 52 pp.
  • 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.