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CEGL003447 Pinus jeffreyi / Quercus vacciniifolia - Garrya buxifolia Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Jeffrey Pine / Huckleberry Oak - Dwarf Silktassel Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This woodland is restricted to a narrow area of serpentine habitat in southwestern Oregon and potentially northwestern California. These woodlands are found entirely at low to mid elevations (averaging 636 m or 3070 feet), on stony (51% cover of surface rock) serpentine or peridotite soils. Aspects tend to be south to southeast, and the slope ranges from 8-35%, but stands are found from ridgetops to draws. It is an open woodland, dominated by Pinus jeffreyi at about 20% cover in the canopy, and generally the only tree species found in the canopy and understory. Individuals of Pseudotsuga menziesii, Pinus attenuata, Pinus monticola, and Umbellularia californica are found as understory species at low cover in most stands. These woodlands are characterized by their dense cover of evergreen, broad-leaved shrubs. Quercus vacciniifolia, Garrya buxifolia, Arctostaphylos nevadensis, and Mahonia repens are found in all sampled stands. Forbs are minor components of these stands, with Xerophyllum tenax, Aspidotis densa, and Whipplea modesta reported.
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: Vegetation is an open woodland, dominated by Pinus jeffreyi at about 20% cover in the canopy, and generally the only tree species found in the canopy and understory. Individuals of Pseudotsuga menziesii, Pinus attenuata, Pinus monticola, and Umbellularia californica are found as understory species at low cover in most stands. These woodlands are characterized by their dense cover of evergreen, broad-leaved shrubs. Quercus vacciniifolia (26%), Garrya buxifolia (22%), Arctostaphylos nevadensis (22%), and Mahonia repens (1%) are found in all sampled stands. Forbs are minor components of these stands, with Xerophyllum tenax, Aspidotis densa, and Whipplea modesta reported.
Dynamics: No Data Available
Environmental Description: These woodlands are found entirely at low to mid elevations (averaging 636 m or 3070 feet), on stony (51% cover of surface rock) serpentine or peridotite soils. Aspects tend to be south to southeast, and the slope ranges from 8-35%, but stands are found from ridgetops to draws.
Geographic Range: This type is restricted to a narrow area of serpentine habitat in southwestern Oregon and potentially northwestern California.
Nations: US
States/Provinces: CA?, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.684940
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: G2G3
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.2 Incense-cedar - Jeffrey Pine - Sierra White Fir Forest Macrogroup | M023 | 1.B.2.Nd.2 |
| Group | 1.B.2.Nd.2.a Incense-cedar - Sugar Pine - Sierra White Fir Forest & Woodland Group | G344 | 1.B.2.Nd.2.a |
| Alliance | A3676 Jeffrey Pine - Washoe Pine Mixed Conifer Woodland Alliance | A3676 | 1.B.2.Nd.2.a |
| Association | CEGL003447 Jeffrey Pine / Huckleberry Oak - Dwarf Silktassel Woodland | CEGL003447 | 1.B.2.Nd.2.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Pinus jeffreyi / Quercus vacciniifolia - Arctostaphylos nevadensis - Garrya buxifolia (Atzet et al. 1996)
- Atzet, T. A., D. E. White, L. A. McCrimmon, P. A. Martinez, P. R. Fong, and V. D. Randall. 1996. Field guide to the forested plant associations of southwestern Oregon. Technical Paper R6-NR-ECOL-TP-17-96. USDA Forest Service, Pacific Northwest Region, Portland, OR.
- Jimerson, T. J., L. D. Hoover, E. A. McGee, G. DeNitto, and R. M. Creasy. 1995. A field guide to serpentine plant associations and sensitive plants in northwestern California. Technical Publication R5-ECOL-TP-006. USDA Forest Service, Pacific Southwest Region, San Francisco, CA.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.