Print Report
CEGL000565 Populus tremuloides / Amelanchier alnifolia / Pteridium aquilinum Forest
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: Quaking Aspen / Saskatoon Serviceberry / Western Brackenfern Forest
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This deciduous forest occurs on primarily on northerly and easterly exposures but has been seen on southeastern and southern exposures as well. It occurs at relatively low elevations in the mountains of northern Utah and western Wyoming. It is know from 2135 to 2193 m (7000-7195 feet) elevation. Soils are primarily derived from sandstone. It occurs on mid to lower slopes on up to 34% grades. The tree layer is almost exclusively Populus tremuloides. Abies concolor or Abies lasiocarpa may be present in the tree layer or as seedlings, but not in such abundance as to suggest eventual replacement of aspen dominance in the overstory. The tall-shrub stratum is dominated by Acer grandidentatum, Prunus virginiana, or Amelanchier alnifolia, or any combination of those species. Low shrubs, such as Symphoricarpos oreophilus, Rosa woodsii, or Mahonia repens, are also often present, sometimes in substantial amounts. The most distinctive feature is the abundance of Pteridium aquilinum in the herbaceous undergrowth. Forbs are often also present with Osmorhiza spp., Galium boreale, Rudbeckia occidentalis, and Thalictrum occidentale. Graminoids are also common with Elymus glaucus, Bromus carinatus, Agrostis exarata, Calamagrostis rubescens, Juncus saximontanus, Carex laeviculmis, and Carex lenticularis. This association is differentiated from the similar ~Populus tremuloides / Pteridium aquilinum Forest (CEGL000597)$$ by the presence of an abundant tall-shrub layer.
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: The tree layer is almost exclusively Populus tremuloides. Abies concolor or Abies lasiocarpa may be present in the tree layer or as seedlings, but not in such abundance as to suggest eventual replacement of aspen dominance in the overstory. The tall-shrub stratum is dominated by Acer grandidentatum, Prunus virginiana, Amelanchier alnifolia, or any combination of those species. Low shrubs, such as Symphoricarpos oreophilus, Rosa woodsii, or Mahonia repens, are also often present, sometimes in substantial amounts. The most distinctive feature is the abundance of Pteridium aquilinum in the herbaceous undergrowth. Forbs are often also present with Osmorhiza spp., Galium boreale, Rudbeckia occidentalis, and Thalictrum occidentale. Graminoids are also common with Elymus glaucus, Bromus carinatus, Agrostis exarata, Calamagrostis rubescens, Juncus saximontanus, Carex laeviculmis, and Carex lenticularis.
Dynamics: No Data Available
Environmental Description: This deciduous forest occurs on primarily on northerly and easterly exposures but has been seen on southeastern and southern exposures as well. It occurs at relatively low elevations in the mountains of northern Utah and western Wyoming. It is know from 2100 to 2193 m (7000-7195 feet) elevation. Soils from one stand have a rich organic layer over well-drained, sandy loams. Soils are primarily derived from sandstone. It occurs on mid to lower slopes up to 34%.
Geographic Range: This association is known from Utah and Wyoming.
Nations: US
States/Provinces: UT, WY
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.687046
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.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.d Quaking Aspen Rocky Mountain Forest & Woodland Group | G222 | 1.B.2.Nb.5.d |
| Alliance | A2036 Quaking Aspen Rocky Mountain Forest & Woodland Alliance | A2036 | 1.B.2.Nb.5.d |
| Association | CEGL000565 Quaking Aspen / Saskatoon Serviceberry / Western Brackenfern Forest | CEGL000565 | 1.B.2.Nb.5.d |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Populus tremuloides / Acer grandidentatum / Pteridium aquilinum Community Type (Mueggler and Campbell 1986) [Mueggler (1988) says "This type was previously identified in the Utah Classification as Populus tremuloides / Acer grandidentatum / Pteridium aquilinum Community Type [in] Mueggler and Campbell (1986)."]
= Populus tremuloides / Amelanchier alnifolia / Pteridium aquilinum Community Type (Mueggler 1988)
= Populus tremuloides / Amelanchier alnifolia / Pteridium aquilinum Community Type (Mueggler 1988)
- 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. 1986. Aspen community types of Utah. Research Paper INT-362. USDA Forest Service, Intermountain Forest and Range Experiment Station, Ogden, UT.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.