Print Report

CEGL003188 Baccharis pilularis / Deschampsia cespitosa Shrubland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Coyotebrush / Tufted Hairgrass 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 on linear dune tops of 5-degree slopes facing north-northwest. The soil textures are moderately coarse sandy loam from stabilized sand dunes. The north-facing sides of fog-shrouded dunes of North Beach provide a surprisingly mesic environment, allowing the mesophytic association to develop. Litter and humus content on the soil surface is relatively high for most dune vegetation. This association forms an intermittent to continuous subshrub/herb layer less than 0.5 m tall. It is dominated by Baccharis pilularis and Deschampsia cespitosa and may include Aira caryophyllea, Danthonia californica, Holcus lanatus, Iris douglasiana, Vulpia sp., Hypochaeris radicata, Rubus ursinus, Rumex acetosella, and Bromus carinatus. Bromus hordeaceus, Erigeron glaucus, Gamochaeta purpurea, Lupinus arboreus, Plantago lanceolata, and Stachys ajugoides may contribute minor amounts of cover. This association may be adjacent to Ammophila arenaria, Juncus stands, Baccharis - Lupinus dunes, and cultivated pastures.

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: This association forms an intermittent to continuous subshrub/herb layer less than 0.5 m tall. It is dominated by Baccharis pilularis and Deschampsia cespitosa and may include Aira caryophyllea, Danthonia californica, Holcus lanatus, Iris douglasiana, Vulpia sp., Hypochaeris radicata, Rubus ursinus, Rumex acetosella, and Bromus carinatus. Bromus hordeaceus, Erigeron glaucus, Gamochaeta purpurea (= Gnaphalium purpureum), Lupinus arboreus, Plantago lanceolata, and Stachys ajugoides may contribute minor amounts of cover.

Dynamics:  No Data Available

Environmental Description:  Stands are found on linear dune tops of 5-degree slopes facing north-northwest. The soil textures are moderately coarse sandy loam from stabilized sand dunes. The north-facing sides of fog-shrouded dunes of North Beach provide a surprisingly mesic environment, allowing the mesophytic association to develop. Litter and humus content on the soil surface is relatively high for most dune vegetation.

Geographic Range: This association is only known from the Point Reyes National Seashore. Information about its global characteristics is not available without additional inventory. It was described from the Point Reyes Peninsula by Elliott and Wehausen (1974). It is likely that, prior to invasion of exotic grasses in the coastal terrace and dune systems of northern California, this association was more common. Small remnant stands of similar vegetation occur at locations such as Salt Point State Park, Sonoma County, California (CNDDB 1993). This association may also occur in Oregon.

Nations: US

States/Provinces:  CA, OR?




Confidence Level: Moderate

Confidence Level Comments: No Data Available

Grank: G2

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 / Deschampsia caespitosa (Sawyer et al. 2009) [32.060.02]
= Baccharis pilularis / Deschampsia caespitosa Shrubland (Elliott and Wehausen 1974)
= Baccharis pilularis / Deschampsia cespitosa Association (Schirokauer et al. 2003) [pi code 24068]

Concept Author(s): Schirokauer et al. (2003)

Author of Description: T. Keeler-Wolf

Acknowledgements: No Data Available

Version Date: 05-06-10

  • CNDDB [California Natural Diversity Database]. 1993. North Coast sensitive natural community field inventory. June-July 1993. Administrative report on file at California Natural Diversity Database, California Department of Fish and Game, Sacramento.
  • Elliott, H. W., and J. D. Wehausen. 1974. Vegetation succession on coastal rangeland of Point Reyes Peninsula. Madrono 22:231-238.
  • 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.
  • Sawyer, J. O., and T. Keeler-Wolf. 1995. A manual of California vegetation. California Native Plant Society, Sacramento. 471 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.