Print Report

CEGL003196 Baccharis pilularis - Rubus ursinus / Weedy Herbs Shrubland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Coyotebrush - California Blackberry / Weedy Herbs 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 the lower third to ridgetops of 18° to 35° southwest- to northwest-facing slopes. Soil textures range from moderately fine silty clay loam to coarse loamy sand. This association typically occupies the coastal terrace and coastward sides of the area. Rubus ursinus is a common colonizer of moist areas in this zone, and this association is indicative of a slightly cooler and moister setting than ~Baccharis pilularis / Annual Grass-Herb Shrubland (CEGL003183)$$. Under equivalent moisture conditions, it also indicates a somewhat more advanced stage in the stand dynamics of ~Baccharis pilularis Scrub Alliance (A0836)$$ than the former association. Stands of this shrubland form an open to intermittent herb layer and an open to intermittent shrub layer. It is dominated by Baccharis pilularis and Rubus ursinus. Toxicodendron diversilobum and Clinopodium douglasii are usually present, and a variety of other species that may also be present include Lonicera hispidula, Frangula californica, Symphyotrichum chilense, Oemleria cerasiformis, Heracleum maximum, Marah fabaceus, Holcus lanatus, Agrostis sp., Briza minor, Plantago lanceolata, Pteridium aquilinum, Geranium dissectum, Scrophularia californica, and Hypochaeris radicata.

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 intermittent herb layer and an open to intermittent shrub layer. It is dominated by Baccharis pilularis and Rubus ursinus. Toxicodendron diversilobum and Clinopodium douglasii (= Satureja douglasii) are usually present, and a variety of other species that may also be present include Lonicera hispidula, Frangula californica (= Rhamnus californica), Symphyotrichum chilense (= Aster chilensis), Oemleria cerasiformis, Heracleum maximum (= Heracleum lanatum), Marah fabaceus, Holcus lanatus, Agrostis sp., Briza minor, Plantago lanceolata, Pteridium aquilinum, Geranium dissectum, Scrophularia californica, and Hypochaeris radicata.

Dynamics:  No Data Available

Environmental Description:  Stands are found at low elevations on the lower third to ridgetops of 18° to 35° southwest- to northwest-facing slopes. Soil textures range from moderately fine silty clay loam to coarse loamy sand. This association typically occupies the coastal terrace and coastward sides of the area. Rubus ursinus is a common colonizer of moist areas in this zone, and this association is indicative of a slightly cooler and moister setting than ~Baccharis pilularis / Annual Grass-Herb Shrubland (CEGL003183)$$. Under equivalent moisture conditions, it also indicates a somewhat more advanced stage in the stand dynamics of ~Baccharis pilularis Scrub Alliance (A0836)$$ than the former association.

Geographic Range: This association is only known from the Point Reyes National Seashore. Information about its global characteristics is not available without additional inventory. However, it is likely that this association is common in foggy coastal areas in northern California expressing a stage transition from open pasture and perennial non-native grassland to a more continuous cover of Baccharis pilularis.

Nations: US

States/Provinces:  CA




Confidence Level: Low

Confidence Level Comments: No Data Available

Grank: G5

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Baccharis pilularis - Rubus ursinus / Weedy Association (Schirokauer et al. 2003) [pi code 24064]
= Baccharis pilularis - Rubus ursinus / weedy herb (Sawyer et al. 2009) [32.060.15]

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.