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CEGL003172 Sequoia sempervirens / Notholithocarpus densiflorus / Vaccinium ovatum Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Redwood / Tanoak / California Huckleberry 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. This forest is found on gentle to moderate slopes of all aspects. Stands grow on the middle to upper third of the slope, on moderately fine to medium sandy clay loams. Some soils are derived from Franciscan Melange. Stands are variable in structure not only because of past logging, but also because of environmental effects. Extremely low-statured stands exist on the upper slopes of west-facing canyons coming off of Bolinas Ridge. There Sequoia sempervirens individuals may only be 10-15 m tall, and appear stunted due to restriction by fine-grained mudstone substrate. These stands, adjacent to various chaparral stands, are in contrast to those stands in the canyon bottoms where trees may be up to 80 m tall. This vegetation often forms a two-tiered canopy, with Sequoia sempervirens forming an intermittent to continuous tall-tree canopy between 20 and 80 m, and Notholithocarpus densiflorus important in the lower tree layer. In some stands Umbellularia californica may be equally important. Vaccinium ovatum is the dominant shrub in the open to intermittent shrub layer. Corylus cornuta is often present. The herbaceous layer is open, with Polystichum munitum and Pteridium aquilinum the most common species.
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: Extremely low-statured stands exist on the upper slopes of west-facing canyons coming off of Bolinas Ridge. There Sequoia sempervirens individuals may only be 10-15 m tall, and appear stunted due to restriction by fine-grained mudstone substrate. These stands, adjacent to various chaparral stands, are in contrast to those stands in the canyon bottoms where trees may be up to 80 m tall. This vegetation often forms a two-tiered canopy, with Sequoia sempervirens forming an intermittent to continuous tall-tree canopy between 20 and 80 m, and Notholithocarpus densiflorus (= Lithocarpus densiflorus) important in the lower tree layer. In some stands Umbellularia californica may be equally important. Vaccinium ovatum is the dominant shrub in the open to intermittent shrub layer. Corylus cornuta is often present. The herbaceous layer is open, with Polystichum munitum and Pteridium aquilinum the most common species.
Dynamics: No Data Available
Environmental Description: This forest is found on gentle to moderate slopes of all aspects. Stands grow on the middle to upper third of the slope, on moderately fine to medium sandy clay loams. Some soils are derived from Franciscan Melange. Stands are variable in structure not only because of past logging, but also because of environmental effects.
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 likely that the majority of stands of redwood in the Muir Woods National Monument (Marin County) are also this association.
Nations: US
States/Provinces: CA
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.688496
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G3?
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.2 Cool Temperate Forest & Woodland Formation | F008 | 1.B.2 |
| Division | 1.B.2.Nd Vancouverian Forest & Woodland Division | D192 | 1.B.2.Nd |
| Macrogroup | 1.B.2.Nd.3 Western Hemlock - Sitka Spruce - Redwood Rainforest Macrogroup | M024 | 1.B.2.Nd.3 |
| Group | 1.B.2.Nd.3.a Redwood Forest Group | G235 | 1.B.2.Nd.3.a |
| Alliance | A3403 Coastal Redwood Forest Alliance | A3403 | 1.B.2.Nd.3.a |
| Association | CEGL003172 Redwood / Tanoak / California Huckleberry Forest | CEGL003172 | 1.B.2.Nd.3.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Sequoia sempervirens - Lithocarpus densiflorus / Vaccinium ovatum (Sawyer et al. 2009) [86.100.16]
= Sequoia sempervirens / Lithocarpus densiflorus / Vaccinium ovatum Association (Schirokauer et al. 2003) [pi code 02051]
= Sequoia sempervirens / Lithocarpus densiflorus / Vaccinium ovatum Association (Schirokauer et al. 2003) [pi code 02051]
- 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.