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Artemisia nova Shrub Herbaceous Alliance | Western Ecology Working Group of...
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Name: Artemisia nova Shrub Herbaceous Alliance Reference: Western Ecology Working Group of... Description: Associations in this alliance occur at intermediate elevations (1500-2500 m) in the Intermountain and Rocky Mountain West. The climate is semi-arid with 20-30 (45) cm of annual precipitation. The greatest proportion of the precipitation falls as summer rain, which favors the growth of the herbaceous vegetation in this alliance. The temperature regime is continental, with cold winters, warm summers, large diurnal ranges, and a short frost-free season. Soils are typically young, shallow, coarse-textured, and often derived from calcareous parent materials. In the Columbia River Basin, the vegetation in this alliance occupies the driest habitats of the Artemisia series. The shrublands occupy well-drained slopes and ridges and often grow with other Artemisia spp. on deeper soils. The vegetation in this alliance is characterized by the presence of the dwarf-shrub Artemisia nova, typically with sparse (10-25%) cover. Associated shrub species may include Atriplex confertifolia, Krascheninnikovia lanata, Gutierrezia sarothrae, and Chrysothamnus viscidiflorus. The ground layer is dominated by a dense matrix of perennial bunch grasses that generally exceed the height of the shrubs. The most important species in the associations of this alliance are Festuca idahoensis and Leymus salinus ssp. salmonis. Forbs generally have a low cover and frequency. Occasional species include Balsamorhiza sagittata, Phlox hoodii, Collinsia parviflora, Sphaeralcea coccinea, and Castilleja angustifolia. At the edges of intermountain basins, the shrublands are usually contiguous with Atriplex confertifolia.  Accession Code: VB.CC.23273.ARTEMISIANOVASH Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 01-May-2019
	status: accepted This Community's Level: Alliance This Community's Children: [none]		Names:   Scientific: Artemisia nova Shrub Herbaceous Alliance   Translated: Black Sagebrush Shrub Herbaceous Alliance   UID: HIGHER_CLASS_UNIT.2.125778 NatureServe Explorer   Code: A.1567