Print Report

CEGL003473 Toxicodendron diversilobum - Baccharis pilularis - Rubus parviflorus Shrubland

Type Concept Sentence: No Data Available

Common (Translated Scientific) Name: Pacific Poison-oak - Coyotebrush - Thimbleberry Shrubland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This shrubland 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 is found on the upper third of moderate slopes. Aspects are north to east and slopes are often concave. Soil textures can vary from medium silty loams to moderately coarse sandy loams. This association is a mesic expression of the "North Coastal Scrub" where Toxicodendron diversilobum is strongly dominant. It is clearly related to other Baccharis pilularis associations and with further investigation may be considered a phase of that alliance. Vegetation within this association includes stands dominated by Toxicodendron diversilobum with significant amounts of Baccharis pilularis and Rubus parviflorus or Rubus ursinus in the shrub layer. The shrub canopy is fairly continuous and between 1-2 m in height. Emergent, shrubby individuals of Pseudotsuga menziesii are often present. Marah fabaceus is usually present at about 1% cover. Species present in the herbaceous layer may include Scrophularia californica, Sanicula crassicaulis, Pteridium aquilinum, Phacelia californica, and/or Maianthemum stellatum.

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: No Data Available

Dynamics:  No Data Available
Environmental Description:  No Data Available
Geographic Range: This shrubland 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


Confidence Level: Low

Confidence Level Comments: No Data Available
Grank: G3

Greasons: No Data Available
Type Name Database Code Classification Code
Class 2 Shrub & Herb Vegetation Class C02 2
Subclass 2.B Temperate & Boreal Grassland & Shrubland Subclass S18 2.B
Formation 2.B.1 Mediterranean Scrub & Grassland Formation F038 2.B.1
Division 2.B.1.Na Californian Scrub & Grassland Division D327 2.B.1.Na
Macrogroup 2.B.1.Na.2 Coastal Sagebrush - Black Sage - Coyotebrush Coastal Scrub Macrogroup M044 2.B.1.Na.2
Group 2.B.1.Na.2.c Californian North Coastal & Mesic Scrub Group G662 2.B.1.Na.2.c
Alliance A2610 Pacific Poison-oak Scrub Alliance A2610 2.B.1.Na.2.c
Association CEGL003473 Pacific Poison-oak - Coyotebrush - Thimbleberry Shrubland CEGL003473 2.B.1.Na.2.c
Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available
Synonomy: = Toxicodendron - Baccharis pilularis - Rubus parviflorus Association (Schirokauer et al. 2003) [pi code 30040]
= Toxicodendron diversilobum - Baccharis pilularis - Rubus parviflorus (Sawyer et al. 2009) [37.940.01]
Concept Author(s): Schirokauer et al. (2003)

Author of Description: T. Keeler-Wolf

Acknowledgements: No Data Available

Version Date: 05-06-10
  • 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.