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CEGL002988 Artemisia cana (ssp. bolanderi, ssp. viscidula) / Poa pratensis Ruderal Wet Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: (Bolander Silver Sagebrush, Mountain Silver Sagebrush) / Kentucky Bluegrass Ruderal Wet Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: This association occurs in high mountain valleys, on broad flat, gently sloping to undulating alluvial outwash fans, first or second stream terraces, toeslopes or seeps. Elevation ranges from 1445 to 2560 m (4753-8400 feet). It generally occurs as narrow stringers along stream courses, or in meadows where the water table is near the surface seasonally. Soils are deep and finely textured, alluvial, often with mottling, indicating a fluctuating water table at depths of 60-100 cm below the soil surface. Artemisia cana is the major short-shrub component (10-40% canopy cover); other sagebrush species may also be present in lower abundance such as Artemisia tridentata or Artemisia tridentata ssp. vaseyana. Other shrubs include Dasiphora fruticosa ssp. floribunda and Betula glandulosa. The herbaceous cover is sparse to thick and is generally dominated by Poa pratensis. Other herbaceous species present include Carex simulata, Juncus arcticus ssp. littoralis, Hesperostipa and/or Achnatherum spp., Achillea millefolium, Potentilla gracilis, Trifolium spp., Taraxacum officinale, and Geranium viscosissimum. This association is considered a grazing-induced version of Artemisia cana / Festuca idahoensis in Idaho, Utah, western Wyoming and Montana, or Artemisia cana / Deschampsia cespitosa in northeastern Oregon. It can also be a grazing-induced type of Artemisia cana / Pascopyrum smithii and Artemisia cana / Elymus trachycaulus, also in Montana. Depending on the degree of disturbance, one may find traces of these native graminoid species in the undergrowth.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: This association may be dominated by Artemisia cana ssp. bolanderi or Artemisia cana ssp. viscidula. Most of the authors cited refer only to the species, Artemisia cana. The only known reference to Artemisia cana ssp. bolanderi is from another type, Artemisia cana ssp. bolanderi / Muhlenbergia richardsonis Habitat Type (Hironaka et al. 1983), which mentions Poa secunda as a common understory component, but makes no reference to Poa pratensis. Svalberg et al. (1997) and Tart (1995) are cited for this type but were unavailable for analysis.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: This association is a montane shrubland that occurs in mesic areas of riparian corridors, or along upper terraces of valley floors. Artemisia cana is the major short-shrub component (10-40% canopy cover), other sagebrush species may also be present in lower abundance such as Artemisia tridentata or Artemisia tridentata ssp. vaseyana. Other shrubs include Dasiphora fruticosa ssp. floribunda and Betula glandulosa. Herbaceous cover is sparse to thick and is generally dominated by Poa pratensis. Other herbaceous species present include Carex simulata, Juncus arcticus ssp. littoralis (= Juncus balticus), Hesperostipa and/or Achnatherum (= Stipa) spp., Achillea millefolium, Potentilla gracilis, Trifolium spp., Taraxacum officinale, and Geranium viscosissimum.
Dynamics: This association is considered a grazing-induced version of Artemisia cana / Festuca idahoensis in Idaho, Utah, western Wyoming and Montana, or Artemisia cana / Deschampsia cespitosa in northeastern Oregon. It is also a grazing-induced type of Artemisia cana / Pascopyrum smithii and Artemisia cana / Elymus trachycaulus, also in Montana. Depending on the degree of disturbance, one may find traces of these native graminoid species in the undergrowth.
Environmental Description: This association occurs in high mountain valleys, on broad flat, gently sloping to undulating alluvial outwash fans, first or second stream terraces, toeslopes or seeps. Elevation ranges from 1445 to 2560 m (4753-8400 feet). It generally occurs as narrow stringers along stream courses, or in meadows where the water table is near the surface seasonally. Soils are deep and finely textured, alluvial, and often with mottling indicating a fluctuating water table at depths of 60-100 cm below the soil surface.
Geographic Range: This association is known from northeastern Oregon, Idaho, western Wyoming, southwestern Montana, Utah, and possibly Colorado.
Nations: US
States/Provinces: CO?, ID, MT, OR, UT, WY
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.689363
Confidence Level: Low - Poorly Documented
Confidence Level Comments: No Data Available
Grank: GNA
Greasons: No Data Available
| Type | Name | Database Code | Classification Code |
|---|---|---|---|
| Class | 2 Shrub & Herb Vegetation Class | C02 | 2 |
| Subclass | 2.C Shrub & Herb Wetland Subclass | S44 | 2.C |
| Formation | 2.C.4 Temperate to Polar Freshwater Marsh, Wet Meadow & Shrubland Formation | F013 | 2.C.4 |
| Division | 2.C.4.Nb Western North American Temperate Freshwater Marsh, Wet Meadow & Shrubland Division | D031 | 2.C.4.Nb |
| Macrogroup | 2.C.4.Nb.90 Western North American Ruderal Marsh, Wet Meadow & Shrubland Macrogroup | M301 | 2.C.4.Nb.90 |
| Group | 2.C.4.Nb.90.a Kentucky Bluegrass - Canadian Horseweed - Canada Thistle Ruderal Marsh, Wet Meadow & Shrubland Group | G524 | 2.C.4.Nb.90.a |
| Alliance | A4217 Willow species - Silver Sagebrush Ruderal Understory Wet Shrubland Alliance | A4217 | 2.C.4.Nb.90.a |
| Association | CEGL002988 (Bolander Silver Sagebrush, Mountain Silver Sagebrush) / Kentucky Bluegrass Ruderal Wet Shrubland | CEGL002988 | 2.C.4.Nb.90.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: < Artemisia cana / Festuca idahoensis Community Type (Hansen et al. 1995) [(p.350) Includes stands with up to 40% cover of Poa pratensis.]
< Artemisia cana / Festuca idahoensis Community Type (Tuhy and Jensen 1982) [(p.118) No mention of Poa pratensis in the text, but all other species are the same as reported by other authors for this type; this work is cited by other authors for similarity to their Artemisia cana / Poa pratensis types.]
= Artemisia cana / Poa pratensis (Crowe and Clausnitzer 1997) [(p.159)]
= Artemisia cana / Poa pratensis Community Type (Youngblood et al. 1985a) [(p.30)]
= Artemisia cana / Poa pratensis Community Type (Padgett et al. 1989) [(p.93)]
= Artemisia cana / Poa pratensis Plant Association (Cooper et al. 1999) [(p.135)]
< Artemisia cana ssp. viscidula / Festuca idahoensis Habitat Type (Hironaka et al. 1983) [(p.37) Poa pratensis is a common increaser as the bunchgrasses decline, presumably stands with abundant Popr are included. No stand table data in this document.]
< Artemisia cana / Festuca idahoensis Community Type (Tuhy and Jensen 1982) [(p.118) No mention of Poa pratensis in the text, but all other species are the same as reported by other authors for this type; this work is cited by other authors for similarity to their Artemisia cana / Poa pratensis types.]
= Artemisia cana / Poa pratensis (Crowe and Clausnitzer 1997) [(p.159)]
= Artemisia cana / Poa pratensis Community Type (Youngblood et al. 1985a) [(p.30)]
= Artemisia cana / Poa pratensis Community Type (Padgett et al. 1989) [(p.93)]
= Artemisia cana / Poa pratensis Plant Association (Cooper et al. 1999) [(p.135)]
< Artemisia cana ssp. viscidula / Festuca idahoensis Habitat Type (Hironaka et al. 1983) [(p.37) Poa pratensis is a common increaser as the bunchgrasses decline, presumably stands with abundant Popr are included. No stand table data in this document.]
- 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.
- Cooper, S. V., C. Jean, and B. L. Heidel. 1999. Plant associations and related botanical inventory of the Beaverhead Mountains Section, Montana. Unpublished report to the Bureau of Land Management. Montana Natural Heritage Program, Helena. 235 pp.
- Crowe, E. A., and R. R. Clausnitzer. 1997. Mid-montane wetland plant associations of the Malheur, Umatilla, and Wallowa-Whitman national forests. Technical Paper R6-NR-ECOL-TP-22-97. USDA Forest Service, Pacific Northwest Region, Portland, OR.
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- Hironaka, M., M. A. Fosberg, and A. H. Winward. 1983. Sagebrush-grass habitat types of southern Idaho. Forestry, Wildlife, and Range Experiment Station Bulletin No. 15, University of Idaho, Moscow. 44 pp.
- MTNHP [Montana Natural Heritage Program]. 2002b. List of ecological communities for Montana. Montana Natural Heritage Program, Montana State Library, Helena, MT.
- Padgett, W. G., A. P. Youngblood, and A. H. Winward. 1989. Riparian community type classification of Utah and southeastern Idaho. Research Paper R4-ECOL-89-0. USDA Forest Service, Intermountain Forest and Range Experiment Station, Ogden, UT.
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- Tuhy, J. S., and S. Jensen. 1982. Riparian classification for the Upper Salmon and Middle Fork Salmon River drainages, Idaho. Unpublished report prepared for the USDA Forest Service, Intermountain Region by White Horse Associates, Smithfield, UT. 183 pp.
- Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.
- Youngblood, A. P., W. G. Padgett, and A. H. Winward. 1985a. Riparian community type classification of eastern Idaho-western Wyoming. R4-Ecol-85-01. USDA Forest Service, Intermountain Region, Ogden, UT. 78 pp.