Print Report
CEGL003198 Ceanothus thyrsiflorus - Baccharis pilularis - Toxicodendron diversilobum Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Blueblossom - Coyotebrush - Pacific Poison-oak Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: Stands of this shrubland occur from the central California coast to Oregon and inland to the lower elevations of the Klamath Mountains. It is likely that this association occurs along the coastal strip of northern and central California and as far south as central Monterey County. This is a low-elevation scrub tied to foggy coasts. It occurs within the main distribution of ~Baccharis pilularis Scrub Alliance (A0836)$$ and is usually within sight of the ocean. At Point Reyes National Seashore, this vegetation includes stands codominated by Ceanothus thyrsiflorus and Rubus ursinus with 35-100% cover provided by the two dominant species. Baccharis pilularis and Toxicodendron diversilobum fill out the shrub canopy. The canopy is between 1-2 m in height, but emergent individuals may be present. Pteridium aquilinum and a wide variety of herbaceous species contribute minor cover.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association may be one of the most common associations of this alliance in the cool coastal strip of northern and central California.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: No Data Available
Dynamics: No Data Available
Environmental Description: This association is only known from the vicinity of the Point Reyes National Seashore. Information about its global characteristics is not available without additional inventory. However, likely stands occur throughout the coastal strip of northern and central California. This is a low-elevation scrub tied to foggy coasts. It occurs within the main distribution of ~Baccharis pilularis Scrub Alliance (A0836)$$ and is usually within sight of the ocean.
Geographic Range: Stands occur from the central California coast to Oregon and inland to the lower elevations of the Klamath Mountains. It is likely that this association occurs along the coastal strip of northern and central California, however, no plot data exist beyond the confines of Point Reyes/Golden Gate. A description of Ceanothus thyrsiflorus stands from the Cone Peak Gradient Research Natural Area (Keeler-Wolf 1990) likely substantiates the existence of this association as far south as central Monterey County.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.686016
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G4?
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 | A0741 Blueblossom Scrub Alliance | A0741 | 2.B.1.Na.2.c |
| Association | CEGL003198 Blueblossom - Coyotebrush - Pacific Poison-oak Shrubland | CEGL003198 | 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: = Ceanothus thyrsiflorus - Baccharis pilularis - Toxicodendron diversilobum (Sawyer et al. 2009) [37.204.01]
= Ceanothus thyrsiflorus - Baccharis pilularis - Toxicodendron diversilobum Association (Schirokauer et al. 2003) [pi code 20021]
= Ceanothus thyrsiflorus - Baccharis pilularis - Toxicodendron diversilobum Shrubland (Keeler-Wolf 1990a)
= Ceanothus thyrsiflorus - Baccharis pilularis - Toxicodendron diversilobum Association (Schirokauer et al. 2003) [pi code 20021]
= Ceanothus thyrsiflorus - Baccharis pilularis - Toxicodendron diversilobum Shrubland (Keeler-Wolf 1990a)
- Keeler-Wolf, T. 1990a. Ecological surveys of Forest Service Research Natural Areas in California. General Technical Report PSW-125. USDA Forest Service, Pacific Southwest Research Station, Berkeley, CA. 165 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.