Print Report
CEGL003449 Pinus monticola - Pseudotsuga menziesii / Quercus vacciniifolia - Notholithocarpus densiflorus Woodland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Western White Pine - Douglas-fir / Huckleberry Oak - Tanoak Woodland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: These woodlands are restricted to a very narrow area of serpentine habitat in southwestern Oregon and northwestern California. They occur at low to mid elevations, ranging from 610 to 1220 m (2000-4000 feet), generally on rocky, serpentine or rarely hornblende or basalt slopes. Aspects are mostly southeast, but range to south and west. Slope positions range from ridgetops to the upper 1/3 slope. This is a woodland dominated by Pinus monticola, Pseudotsuga menziesii, and occasionally Pinus attenuata or Pinus contorta. The shrub cover is fairly high and quite diverse, although Notholithocarpus densiflorus var. echinoides (probably, as a tall shrub) and Quercus vacciniifolia always are dominant. Arctostaphylos nevadensis and Vaccinium virgatum are also present in all but a few stands. Other shrubs, including Mahonia repens, Frangula californica, Garrya buxifolia, and Amelanchier alnifolia can also be found. Forbs are minor components of these stands, with Xerophyllum tenax, Pyrola spp., and Whipplea modesta usually present.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association includes 2 separate types identified by Jimerson et al. (1995) and Atzet et al. (1996) . The two types they describe are similar enough that they have been combined, although Jimerson''s stands have significant cover of Pinus contorta, while Atzet''s have Pinus attenuata, and there are some other minor differences as well. However, they clearly represent a similar, local environment. Both are restricted to a narrow area with a combination of coastal influence and serpentine soils. These types are quite distinct from the more inland Pinus monticola / Quercus vacciniifolia type.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This is a woodland dominated by Pinus monticola (17-20% cover), Pseudotsuga menziesii (5-8%), and occasionally Pinus attenuata (6%) or Pinus contorta (30%). The shrub cover is fairly high and quite diverse, although Notholithocarpus densiflorus var. echinoides (= Lithocarpus densiflorus var. echinoides) (probably, as a tall shrub at 13-16% cover) and Quercus vacciniifolia (23-33% cover) always are dominant. Arctostaphylos nevadensis (5-17%) and Vaccinium virgatum (= Vaccinium parviflorum) (8%) are also present in all but a few stands. Other shrubs, including Mahonia repens, Frangula californica (= Rhamnus californica), Garrya buxifolia, and Amelanchier alnifolia, can also be found. Forbs are minor components of these stands, with Xerophyllum tenax (3-7%), Pyrola spp. (1%), and Whipplea modesta (3%) usually present.
Dynamics: No Data Available
Environmental Description: Stands occur at low to mid elevations, ranging from 610 to 1220 m (2000-4000 feet), generally on rocky, serpentine or rarely hornblende or basalt slopes. Aspects are mostly southeast, but range to south and west. Slope positions range from ridgetops to the upper 1/3 slope.
Geographic Range: This association is restricted to a very narrow area of serpentine habitat in southwestern Oregon and northwestern California.
Nations: US
States/Provinces: CA, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.684032
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 | A3674 Sierra White Fir - Douglas-fir Coastal, Cascadian & Sierran Forest Alliance | A3674 | 1.B.2.Nd.2.a |
| Association | CEGL003449 Western White Pine - Douglas-fir / Huckleberry Oak - Tanoak Woodland | CEGL003449 | 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 monticola - Lithocarpus densiflorus / Quercus vacciniifolia - Xerophyllum tenax (Atzet et al. 1996)
= Pinus monticola - Pseudotsuga menziesii / Quercus vacciniifolia - Lithocarpus densiflorus var. echinoides (Sawyer et al. 2009) [87.170.08]
= Pinus monticola - Pseudotsuga menziesii / Quercus vacciniifolia - Lithocarpus densiflorus (Jimerson et al. 1995)
= Pinus monticola-Pinus contorta/Lithocarpus var. echinoides-Quercus vacciniifolia association (Stumpf et al. 2017)
= Pinus monticola - Pseudotsuga menziesii / Quercus vacciniifolia - Lithocarpus densiflorus var. echinoides (Sawyer et al. 2009) [87.170.08]
= Pinus monticola - Pseudotsuga menziesii / Quercus vacciniifolia - Lithocarpus densiflorus (Jimerson et al. 1995)
= Pinus monticola-Pinus contorta/Lithocarpus var. echinoides-Quercus vacciniifolia association (Stumpf et al. 2017)
- 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.
- Kagan, J. S., J. A. Christy, M. P. Murray, and J. A. Titus. 2004. Classification of native vegetation of Oregon. January 2004. Oregon Natural Heritage Information Center, Portland. 52 pp.
- 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.
- Stumpf, K. A., Cogan Technology, and Kier Associates. 2017. Vegetation mapping and classification project: Redwood National and State Parks, California. Natural Resource Report NPS/REDW/NRR--2017/1431. National Park Service, Fort Collins, CO. 270 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.