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CEGL003165 Pseudotsuga menziesii / Baccharis pilularis Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Douglas-fir / Coyotebrush Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This forest 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 mid to upper sides of 8- to 25° slopes. Soil textures range from loam to coarse loamy sand of shale origin. This association is an early-seral stage of ~Pseudotsuga menziesii - Notholithocarpus densiflorus Forest Alliance (A0106)$$ where it is invading stands of Baccharis pilularis. The seral stage of the Baccharis stands being invaded seems to be variable. Some of the Baccharis stands are late-seral (e.g., those with much Frangula californica, while others are rather early-seral (e.g., those with Ceanothus thyrsiflorus). Certain areas seem to have been rapidly invaded by Pseudotsuga menziesii, while others are more slowly invaded. Local site conditions and stochastic and locally favorable dispersal and establishment events are likely responsible for the variation. Stands of this forest form an open herb layer, an intermittent to continuous shrub layer, and an intermittent to continuous tree layer. It is dominated by Pseudotsuga menziesii and Baccharis pilularis. Toxicodendron diversilobum, Rubus ursinus, and Diplacus aurantiacus are also present. Other species that may be present include Ceanothus thyrsiflorus, Quercus agrifolia, Pinus muricata, Heteromeles arbutifolia, Lonicera hispidula, Lonicera involucrata, Marah fabaceus, Marah oreganus, Plantago lanceolata, Ribes californicum, Ribes sanguineum, Sanicula sp., Scrophularia californica, Umbellularia californica, Frangula californica, Frangula purshiana, Quercus berberidifolia, and Chlorogalum sp.
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 forest form an open herb layer, an intermittent to continuous shrub layer, and an intermittent to continuous tree layer. It is dominated by Pseudotsuga menziesii and Baccharis pilularis. Toxicodendron diversilobum, Rubus ursinus, and Diplacus aurantiacus (= Mimulus aurantiacus) are also present. Other species that may be present include Ceanothus thyrsiflorus, Quercus agrifolia, Pinus muricata, Heteromeles arbutifolia, Lonicera hispidula, Lonicera involucrata, Marah fabaceus, Marah oreganus, Plantago lanceolata, Ribes californicum, Ribes sanguineum, Sanicula sp., Scrophularia californica, Umbellularia californica, Frangula californica (= Rhamnus californica), Frangula purshiana (= Rhamnus purshiana), Quercus berberidifolia, and Chlorogalum sp.
Dynamics: This association is an early-seral stage of ~Pseudotsuga menziesii - Notholithocarpus densiflorus Forest Alliance (A0106)$$ where it is invading stands of Baccharis pilularis. The seral stage of the Baccharis stands being invaded seems to be variable. Some of the Baccharis stands are late-seral (e.g., those with much Frangula californica, while others are rather early-seral (e.g., those with Ceanothus thyrsiflorus). Certain areas seem to have been rapidly invaded by Pseudotsuga menziesii, while others are more slowly invaded. Local site conditions and stochastic and locally favorable dispersal and establishment events are likely responsible for the variation.
Environmental Description: Stands are found at low elevations on mid to upper sides of 8- to 25° slopes. Soil textures range from loam to coarse loamy sand of shale origin.
Geographic Range: This forest association is currently only known from Point Reyes National Seashore in California. Additional range information will be added as it becomes available.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.686024
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G4
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 1 Forest & Woodland Class | C01 | 1 |
| Subclass | 1.B Temperate & Boreal Forest & Woodland Subclass | S15 | 1.B |
| Formation | 1.B.1 Warm Temperate Forest & Woodland Formation | F018 | 1.B.1 |
| Division | 1.B.1.Nc Californian Forest & Woodland Division | D007 | 1.B.1.Nc |
| Macrogroup | 1.B.1.Nc.1 California Live Oak - California Laurel - Western Cypress species Forest & Woodland Macrogroup | M009 | 1.B.1.Nc.1 |
| Group | 1.B.1.Nc.1.c Douglas-fir - Tanoak - Pacific Madrone Forest Group | G208 | 1.B.1.Nc.1.c |
| Alliance | A0106 Douglas-fir - Tanoak Forest Alliance | A0106 | 1.B.1.Nc.1.c |
| Association | CEGL003165 Douglas-fir / Coyotebrush Forest | CEGL003165 | 1.B.1.Nc.1.c |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Pseudotsuga menziesii / Baccharis pilularis (Sawyer et al. 2009) [82.200.72]
= Pseudotsuga menziesii / Baccharis pilularis Association (Schirokauer et al. 2003) [pi code 02012]
= Pseudotsuga menziesii / Baccharis pilularis Association (Schirokauer et al. 2003) [pi code 02012]
- 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.