Print Report
CEGL001548 Artemisia cana (ssp. bolanderi, ssp. viscidula) / Poa secunda Wet Shrubland
Type Concept Sentence: No Data Available
Common (Translated Scientific) Name: (Bolander Silver Sagebrush, Mountain Silver Sagebrush) / Sandberg Bluegrass Wet Shrubland
Colloquial Name: No Data Available
Hierarchy Level: Association
Type Concept: Artemisia cana is usually the only shrub, but Ericameria nauseosa occasionally occurs. Poa secunda is the most common herbaceous species. Other common understory species include Lupinus argenteus, Elymus elymoides, Trifolium gymnocarpon, Astragalus lentiginosus, Eleocharis macrostachya, Distichlis spicata, Polyctenium fremontii, and Camissonia tanacetifolia. This association is found in northern Great Basin playas in sites that are flooded for several months during the winter and early spring but which rapidly dry up as the weather warms. Soils are saline. In more saline soils at slightly lower elevations on the playa, Artemisia cana / Eleocharis macrostachya and Eleocharis macrostachya associations occur. These sites remain flooded for a longer period of time than the Artemisia cana / Poa secunda sites. Playa centers are often the monotypic Camissonia tanacetifolia association, which remains flooded for longer than the other associations and have more saline soils. At higher elevations, Artemisia cana playas usually find Poa fendleriana replacing Poa secunda as the dominant grass.
Diagnostic Characteristics: No Data Available
Rationale for Nominal Species or Physiognomic Features: No Data Available
Classification Comments: Low cover of vegetation is typical of this association.
Similar NVC Types: No Data Available
note: No Data Available
Physiognomy and Structure: No Data Available
Floristics: Little information is available on the composition of this association. The 1- to 2-m tall, broad-leaved evergreen shrub Artemisia cana is moderately to widely spaced in the canopy of this association. Ericameria nauseosa (= Chrysothamnus nauseosus) occasionally occurs. The herbaceous layer is dominated by the widely spaced, perennial bunchgrass Poa secunda (usually in the formerly recognized, large Poa secunda ssp. nevadensis form) with Elymus caninus occurring, and occasionally abundant, in most stands. Only a few forb species occur, typically in moist microsites. Other common understory species include Lupinus argenteus, Elymus elymoides, Trifolium gymnocarpon, Astragalus lentiginosus, Eleocharis macrostachya, Distichlis spicata (= Distichlis stricta), Polyctenium fremontii, and Camissonia tanacetifolia (= Oenothera tanacetifolia). Bare ground is extensive.
Dynamics: No Data Available
Environmental Description: This association occurs in a semi-arid region of varied topography. Average annual precipitation is between 20 cm and 40 cm for much of the region, with somewhat higher amounts at higher elevations. This association is found on moist, semi-alkaline flats or valley bottoms within the sagebrush or western juniper zones of Oregon. Elevations of these bottomlands can range from 1060 to over 1830 meters, but at higher elevations the association occurs as small patches in montane meadows.
Geographic Range: This association is restricted to east-central Oregon. The association is restricted to the portion of the desert playa that is underwater for several months of the year.
Nations: US
States/Provinces: CA?, NV?, OR
Plot Analysis Summary:
http://vegbank.org/natureserve/ELEMENT_GLOBAL.2.686511
Confidence Level: Low
Confidence Level Comments: No Data Available
Grank: G2
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.5 Sitka Alder - Booth''s Willow / Northwest Territory Sedge Montane Marsh, Wet Meadow & Shrubland Macrogroup | M893 | 2.C.4.Nb.5 |
| Group | 2.C.4.Nb.5.a Narrowleaf Willow - Hawthorn species - Stretchberry Rocky Mountain-Great Basin Riparian Shrubland Group | G526 | 2.C.4.Nb.5.a |
| Alliance | A2557 Silver Sagebrush Wet Shrubland Alliance | A2557 | 2.C.4.Nb.5.a |
| Association | CEGL001548 (Bolander Silver Sagebrush, Mountain Silver Sagebrush) / Sandberg Bluegrass Wet Shrubland | CEGL001548 | 2.C.4.Nb.5.a |
Concept Lineage: No Data Available
Predecessors: No Data Available
Obsolete Names: No Data Available
Obsolete Parents: No Data Available
Synonomy: = Artemisia cana / Dry Graminoid Community Type (Manning and Padgett 1991)
= Artemisia cana / Dry Graminoid Community Type (Manning and Padgett 1995)
? Artemisia cana / mesic (Poa secunda - Poa cusickii) (Sawyer et al. 2009) [35.150.07]
= Artemisia cana / Dry Graminoid Community Type (Manning and Padgett 1995)
? Artemisia cana / mesic (Poa secunda - Poa cusickii) (Sawyer et al. 2009) [35.150.07]
- 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.
- 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.
- Manning, M. E., and W. G. Padgett. 1991. Riparian community type classification for the Humboldt and Toiyabe national forests, Nevada and eastern California. Unpublished draft report prepared for USDA Forest Service, Intermountain Region Ecology and Classification Program, Ogden, UT. 490 pp.
- Manning, M. E., and W. G. Padgett. 1995. Riparian community type classification for Humboldt and Toiyabe national forests, Nevada and eastern California. USDA Forest Service, Intermountain Region. 306 pp.
- ORNHP [Oregon Natural Heritage Program]. No date. Unpublished data files. Oregon Natural Heritage Program, The Nature Conservancy, Portland, OR.
- 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.