Print Report
CEGL003186 Baccharis pilularis - Ceanothus thyrsiflorus Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Coyotebrush - Blueblossom 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. Stands are found at low elevations on 4° to 24° slopes with north- to northwest-facing slopes. Soil textures range from moderately coarse sandy loam to moderately fine sandy clay loam. Stands on Point Reyes were affected by the 1995 Mount Vision fire and have young individuals of Ceanothus thyrsiflorus and resprouts of Baccharis pilularis. Stands of this shrubland form an open to continuous herb layer, an intermittent to continuous shrub layer 1-2 m tall, and sometimes and open tree layer 5-10 m tall. It is dominated by Baccharis pilularis and Ceanothus thyrsiflorus. Toxicodendron diversilobum is usually present, and a variety of other species found in this association may include Bromus hordeaceus, Bromus carinatus, Chlorogalum pomeridianum, Clinopodium douglasii, Sanicula crassicaulis, Pseudotsuga menziesii, Frangula californica, Rubus ursinus or Rubus parviflorus, and Marah fabaceus. This association is frequently found adjacent to ~Baccharis pilularis - Toxicodendron diversilobum Shrubland (CEGL003197)$$.
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: Stands of this shrubland form an open to continuous herb layer, an intermittent to continuous shrub layer 1-2 m tall, and sometimes and open tree layer 5-10 m tall. It is dominated by Baccharis pilularis and Ceanothus thyrsiflorus. Toxicodendron diversilobum is usually present, and a variety of other species found in this association may include Bromus hordeaceus, Bromus carinatus, Chlorogalum pomeridianum, Clinopodium douglasii (= Satureja douglasii), Sanicula crassicaulis, Pseudotsuga menziesii, Frangula californica (= Rhamnus californica), Rubus ursinus or Rubus parviflorus, and Marah fabaceus.
Dynamics: Stands on Point Reyes were affected by the 1995 Mount Vision fire and have young individuals of Ceanothus thyrsiflorus and resprouts of Baccharis pilularis.
Environmental Description: Stands are found at low elevations on 4° to 24° slopes with north- to northwest-facing slopes. Soil textures range from moderately coarse sandy loam to moderately fine sandy clay loam.
Geographic Range: This shrubland association is currently only known from Point Reyes National Seashore in California. The two nominal species are commonly associated throughout the Central and North Coast Ranges of California. It is likely that with further inventory this association may be found from Monterey to Humboldt counties. Additional range information will be added as it becomes available.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688479
Confidence Level: Moderate
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 | A0836 Coyotebrush Scrub Alliance | A0836 | 2.B.1.Na.2.c |
| Association | CEGL003186 Coyotebrush - Blueblossom Shrubland | CEGL003186 | 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 - Ceanothus thyrsiflorus (Sawyer et al. 2009) [32.060.14]
= Baccharis pilularis - Ceanothus thyrsiflorus Association (Schirokauer et al. 2003) [pi code 24054]
= Baccharis pilularis - Ceanothus thyrsiflorus Association (Schirokauer et al. 2003) [pi code 24054]
- 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.