Print Report
CEGL003197 Baccharis pilularis - Toxicodendron diversilobum Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Coyotebrush - Pacific Poison-oak 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 grows on gentle to moderately steep slopes of all aspects and all upland slope positions. Soils are generally medium to fine sandy loams. This is probably the most abundant Baccharis pilularis association in the Point Reyes/Golden Gate area. It is found from the immediate coast to several miles inland, usually within the influence of the summer fog belt. It is usually dense in cover and appears to be present in moderately young to moderately old stands of the alliance. The progression of Baccharis pilularis associations in the area ranges from the invasive open grassy stands, including ~Baccharis pilularis - Rubus ursinus / Weedy Herbs Shrubland (CEGL003196)$$, to old thick stands that are codominated with Frangula californica ssp. californica. Stands of ~Baccharis pilularis - Toxicodendron diversilobum Shrubland (CEGL003197)$$ appear to occupy the modal representation of temporal development of stands of this alliance. Stands of this association are heavily dominated by Baccharis pilularis and Toxicodendron diversilobum, which typically combine for more than 50% cover. The shrub canopy is usually between 1-2 m in height. Other shrubs present often include Rubus ursinus and/or Heteromeles arbutifolia. The herbaceous layer is diverse and often includes Pteridium aquilinum, Aira caryophyllea (exotic), and/or Heracleum maximum. Many graminoids can be present like Holcus lanatus (exotic), Bromus hordeaceus (exotic), Nassella lepida, and/or Nassella pulchra.
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 association is only known from the vicinity of the Point Reyes National Seashore and Golden Gate National Recreation Area. Information about its global range is not available without additional inventory. It is likely that this association is widespread in coastal California from near the Oregon border south to at least the vicinity of Santa Barbara.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.683117
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: G5
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 | A0836 Coyotebrush Scrub Alliance | A0836 | 2.B.1.Na.2.c |
| Association | CEGL003197 Coyotebrush - Pacific Poison-oak Shrubland | CEGL003197 | 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: = Baccharis pilularis - Toxicodendron diversilobum (Sawyer et al. 2009) [32.060.17]
= Baccharis pilularis - Toxicodendron diversilobum Association (Schirokauer et al. 2003) [pi code 24059]
= Baccharis pilularis - Toxicodendron diversilobum Association (Schirokauer et al. 2003) [pi code 24059]
- 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.