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Artemisia tripartita ssp. tripartita / Festuca campestris Shrub Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Artemisia tripartita ssp. tripartita / Festuca campestris Shrub Herbaceous Vegetation Reference: Western Ecology Working Group of... Description: This type is a minor component of landscapes generally dominated by <i>Artemisia tridentata ssp. vaseyana</i> in both eastern Washington and western Montana. These are generally arid sites with annual precipitation of 20-60 cm; in Washington elevation ranges between 335 and 915 m (1100-3000 feet), whereas its highly circumscribed Montana distribution ranges between 1280 and 1400 m (4200-4600 feet). In Washington this type is found on northerly aspects where loess soils cap basalt and granite. In Montana this type is found in glaciated landscapes where glacial till derived from metamorphic Belt Series rock predominates, and it occurs on gentle slopes of all aspects. It is possibly more abundant in British Columbia and Alberta. <i>Artemisia tripartita</i>, characteristically less than 2 feet tall, dominates the shrub layer, typically ranging in canopy cover from 10-40%. In Washington, <i>Artemisia tridentata</i> and <i>Purshia tridentata</i>, and in Montana <i>Rosa woodsii</i>, are the shrubs regularly present. On most sites, especially those only lightly grazed, <i>Festuca campestris</i> is by far the dominant herb (canopy cover ranging from 10-60%), but on the most mesic sites its cover can be approached by that of <i>Achnatherum richardsonii (= Stipa richardsonii)</i> and/or <i>Achnatherum occidentale (= Stipa occidentalis)</i>. On more intensively grazed sites <i>Festuca idahoensis</i> cover (or that of other graminoids) approaches or exceeds that of <i>Festuca campestris</i>. Forb diversity is moderate to high; in Montana, <i>Potentilla gracilis, Geranium viscosissimum, Lupinus sericeus, Eriogonum umbellatum</i> and <i>Antennaria microphylla</i> dominate this layer. Washington occurrences contrast with those of Montana by having a well-developed soil crust of mosses, lichens and algae.  Accession Code: VB.CC.34067.CEGL001537 Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 17-Nov-2014 to: 01-May-2019
	status: accepted This Community's Level: association This Community's Children: [none]		Names:   Translated: Threetip Sagebrush / Rough Fescue Shrub Herbaceous Vegetation   Scientific: Artemisia tripartita ssp. tripartita / Festuca campestris Shrub Herbaceous Vegetation   UID: ELEMENT_GLOBAL.2.688208 NatureServe Explorer   Code: CEGL001537