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CEGL000536 Populus tremuloides - Pinus contorta / Carex geyeri - Calamagrostis rubescens Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Quaking Aspen - Lodgepole Pine / Geyer''s Sedge - Pinegrass Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This forested association is known only from eastern Idaho, western Wyoming and northern Utah, the Utah -Wyoming Rocky Mountain Ecoregion. This mixed broadleaf deciduous-needleleaf evergreen forest occurs in the mountains between 1900 and 2900 m (6200-9400 feet) elevation, on gentle slopes of all aspects, on soils from sandstone or quartzite rock. It has little structural diversity and is fairly simple compositionally. The tree layer is dominated by both Populus tremuloides and Pinus contorta, with the occasional presence of other conifers, such as Abies lasiocarpa or Pseudotsuga menziesii. A few scattered shrub species may be present, but these do not form a distinct shrub layer. Shrub species may include Juniperus communis, Mahonia repens, or Shepherdia canadensis. The herbaceous layer consists of either Carex geyeri or Calamagrostis rubescens, sometimes with appreciable amounts of forbs such as Lupinus argenteus, Osmorhiza berteroi, Geranium viscosissimum, Chamerion angustifolium, Heracleum maximum, or Thalictrum fendleri.
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 mixed forest type has little structural diversity and is fairly simple compositionally. The tree layer is dominated by both Populus tremuloides and Pinus contorta, with the occasional presence of other conifers, such as Abies lasiocarpa or Pseudotsuga menziesii. A few scattered shrub species may be present, but these do not form a distinct shrub layer. Shrub species may include Juniperus communis, Mahonia repens, or Shepherdia canadensis. The herbaceous layer consists of either Carex geyeri or Calamagrostis rubescens, sometimes with appreciable amounts of forbs such as Lupinus argenteus, Osmorhiza berteroi (= Osmorhiza chilensis), Geranium viscosissimum, Chamerion angustifolium, Heracleum maximum, or Thalictrum fendleri.
Dynamics: This type is considered a seral forest. Pinus contorta may be the dominant, or, if there are Abies lasiocarpa seedlings in the understory, it may succeed to an Abies lasiocarpa / Calamagrostis rubescens forest type, barring any fire or other disturbance in the next 200+ years.
Environmental Description: This mixed forest occurs in the mountains between 1900 and 2900 m (6200-9400 feet) elevation, on gentle slopes of all aspects, on soils from sandstone or quartzite rock.
Geographic Range: This mixed deciduous-coniferous forest is known from northern Utah, western Wyoming, and eastern Idaho.
Nations: US
States/Provinces: ID, UT, WY
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.686484
Confidence Level: Moderate
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.Nb Rocky Mountain Forest & Woodland Division | D194 | 1.B.2.Nb |
| Macrogroup | 1.B.2.Nb.5 Subalpine Fir - Engelmann Spruce - Whitebark Pine Rocky Mountain Forest Macrogroup | M020 | 1.B.2.Nb.5 |
| Group | 1.B.2.Nb.5.a Lodgepole Pine Rocky Mountain Forest & Woodland Group | G220 | 1.B.2.Nb.5.a |
| Alliance | A0424 Lodgepole Pine - Quaking Aspen Rocky Mountain Forest Alliance | A0424 | 1.B.2.Nb.5.a |
| Association | CEGL000536 Quaking Aspen - Lodgepole Pine / Geyer''s Sedge - Pinegrass Forest | CEGL000536 | 1.B.2.Nb.5.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Populus tremuloides - Pinus contorta / Carex geyeri Community Type (Mueggler 1988)
= Populus tremuloides - Pinus contorta / Vaccinium scoparium Community Type (Mueggler and Campbell 1986) [See comments in Mueggler (1988) (p.74): "The few communities [6 stands] identified as P. tremuloides-P. contorta / Vaccinium scoparium Community Type in the Utah classification (Mueggler and Campbell 1986) have been included in the new POTR-PICO/CAGE c.t."]
= Populus tremuloides - Pinus contorta / Vaccinium scoparium Community Type (Mueggler and Campbell 1986) [See comments in Mueggler (1988) (p.74): "The few communities [6 stands] identified as P. tremuloides-P. contorta / Vaccinium scoparium Community Type in the Utah classification (Mueggler and Campbell 1986) have been included in the new POTR-PICO/CAGE c.t."]
- Bourgeron, P. S., and L. D. Engelking, editors. 1994. A preliminary vegetation classification of the western United States. Unpublished report. The Nature Conservancy, Western Heritage Task Force, Boulder, CO. 175 pp. plus appendix.
- Cogan, D., K. Varga, and G. Kittel. 2005. USGS-NPS Vegetation Mapping Program: Grand Teton National Park and John D. Rockefeller, Jr. Memorial Parkway. Final Project Report 2002-2005 Vegetation Mapping Project. Technical Memorandum 8260-06-02. USDI Bureau of Reclamation, Denver, CO. 87 pp. plus Appendixes A-F.
- Mueggler, W. F. 1988. Aspen community types of the Intermountain Region. General Technical Report INT-250. USDA Forest Service, Intermountain Research Station, Ogden, UT. 135 pp.
- Mueggler, W. F., and R. B. Campbell, Jr. 1982. Aspen community types on the Caribou and Targhee national forests in southeastern Idaho. Research Paper INT-294. USDA Forest Service, Intermountain Forest and Range Experiment Station, Ogden, UT. 32 pp.
- Mueggler, W. F., and R. B. Campbell, Jr. 1986. Aspen community types of Utah. Research Paper INT-362. USDA Forest Service, Intermountain Forest and Range Experiment Station, Ogden, UT.
- WNDD [Wyoming Natural Diversity Database]. No date. Unpublished data on file. Wyoming Natural Diversity Database, University of Wyoming, Laramie, WY.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.