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CEGL003316 Frangula californica ssp. californica - Baccharis pilularis / Scrophularia californica Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: California Buckthorn - Coyotebrush / California Figwort 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 moderate north- and east-facing slopes, from the lower to upper third of the slope. Stands prefer soils which retain moisture much of the year such as moderate sandy loams. This vegetation is heavily dominated by Frangula californica ssp. californica and Baccharis pilularis, which combine for 50-90% cover. Toxicodendron diversilobum may be present (usually less than 10%). The canopy is densest between 2-5 m. Scrophularia californica is diagnostic in the herbaceous and short-shrub layers, ranging from a few percent to 35% cover.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association (CEGL003316) is likely the result of a transition from late-seral associations of Baccharis pilularis such as ~Baccharis pilularis / Polystichum munitum Shrubland (CEGL003195)$$ or ~Baccharis pilularis - Frangula californica - Rubus parviflorus Shrubland (CEGL003191)$$ into Frangula californica stands if undisturbed for several years. It appears that Frangula californica does not colonize disturbed Baccharis pilularis stands for many years and typically occupies stands in relatively mesic sites such as north-facing slopes. It is uncertain what happens to relatively old stands of CEGL003316 following fire or other disturbance. Frangula will resprout vigorously following fire (McMurray 1990). Baccharis pilularis has a variable response depending on intensity, resprouting more vigorously when burned in low- to moderate-intensity fires (Keeler-Wolf pers. obs.). It appears that the oldest stands are those most strongly dominated by Frangula californica. Many of these older stands show senescence in the canopy of individual Frangula shrubs and a very heavy lichen load on the stems of the shrubs.
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. Information about its global range is not available without additional inventory. It is expected that this is a common association along the immediate coast of northern California from Santa Cruz County north to Humboldt County.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.685197
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 | A0836 Coyotebrush Scrub Alliance | A0836 | 2.B.1.Na.2.c |
| Association | CEGL003316 California Buckthorn - Coyotebrush / California Figwort Shrubland | CEGL003316 | 2.B.1.Na.2.c |
Concept Lineage: Upgraded to Standard during screening.
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Frangula californica - Baccharis pilularis / Scrophularia californica (Sawyer et al. 2009) [37.920.01]
= Rhamnus californica - Baccharis pilularis / Scrophularia californica Association (Schirokauer et al. 2003) [pi code 21461]
= Rhamnus californica - Baccharis pilularis / Scrophularia californica Association (Schirokauer et al. 2003) [pi code 21461]
- Keeler-Wolf, T. Personal communication. Senior Vegetation Ecologist, Wildlife and Habitat Data Analysis Branch, California Department of Fish and Game, Sacramento, CA.
- McMurray, N. E. 1990. Rhamnus californica. In: Fire Effects Information System [Online]. USDA Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). [http://www.fs.fed.us/database/feis/] (accessed 12 February 2001).
- 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.