Print Report
CEGL003448 Pinus jeffreyi / Quercus vacciniifolia - Arctostaphylos nevadensis Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Jeffrey Pine / Huckleberry Oak - Pinemat Manzanita Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association is currently known from only one area in the Siskiyou Mountains of southwestern Oregon. These woodlands are found at low elevations (averaging 683 m [2240 feet]), on stony, gravelly serpentine or peridotite soils. The soils are typical, red serpentine clays. Aspects and slopes are variable. This is a woodland, dominated by Pinus jeffreyi, Pseudotsuga menziesii, and Pinus attenuata. The shrub cover is moderate and variable, with Umbellularia californica forming a tall-shrub layer, and Quercus vacciniifolia, Arctostaphylos nevadensis, Frangula californica at about 1 m tall, and Ceanothus pumilus as an evergreen shrub ground cover. Forbs are generally present, with Carex spp., Zigadenus micranthus, Aspidotis densa, Galium ambiguum, Lomatium macrocarpum, and Achillea millefolium found in most stands.
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 is a woodland, dominated by Pinus jeffreyi (averaging 15% cover), Pseudotsuga menziesii (10% cover), and Pinus attenuata (7% cover). The shrub cover is moderate and variable, with Umbellularia californica at average cover of 18% forming a tall-shrub layer, and Quercus vacciniifolia (22% cover), Arctostaphylos nevadensis (8% cover), Frangula californica (= Rhamnus californica) (4%) at about 1 m tall, and Ceanothus pumilus (3%) as an evergreen shrub ground cover. Forbs are generally present, with Carex spp., Zigadenus micranthus, Aspidotis densa, Galium ambiguum, Lomatium macrocarpum, and Achillea millefolium found in most stands.
Dynamics: No Data Available
Environmental Description: These woodlands are found at low elevations (averaging 683 m or 2240 feet), on stony (51% cover of surface rock), gravelly (25-33%) serpentine or peridotite soils. The soils are typical, red serpentine clays. Aspects and slopes are variable.
Geographic Range: This association is known only from the Smith River drainage in the Siskiyou Mountains of southwestern Oregon, near the California border.
Nations: US
States/Provinces: CA?, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.685622
Confidence Level: Moderate
Confidence Level Comments: No Data Available
Grank: G2
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 | CEGL003448 Jeffrey Pine / Huckleberry Oak - Pinemat Manzanita Woodland | CEGL003448 | 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 / Festuca idahoensis (Sawyer et al. 2009) [87.020.27]
= Pinus jeffreyi / Quercus vacciniifolia - Arctostaphylos nevadensis (Atzet et al. 1996)
= Pinus jeffreyi / Quercus vacciniifolia - Arctostaphylos nevadensis (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.
- 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.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.