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Artemisia tripartita ssp. tripartita / Hesperostipa comata Shrub Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Artemisia tripartita ssp. tripartita / Hesperostipa comata Shrub Herbaceous Vegetation
Reference: Western Ecology Working Group of...
Description: This association is known from the Columbia Basin and Okanogan Valley in Washington, southeastern Idaho, and western Wyoming. It may also occur in British Columbia, Canada. Sandy to gravelly soils or low-fertility soils (old, weathered volcanic ash) are associated with this type. This is an open to closed bunchgrass community punctuated by low shrubs. <i>Artemisia tripartita</i>, typically less than 0.6 m (2 feet) tall, creates the open shrub layer that typically contributes 10-30% to total plant cover. <i>Artemisia tridentata ssp. wyomingensis, Purshia tridentata</i>, and <i>Ericameria</i> spp. (= <i>Chrysothamnus</i> spp.) can be present or codominant, especially on disturbed sites. The general appearance of the community is a bunchgrass community with <i>Hesperostipa comata (= Stipa comata)</i> dominating the midgrass layer. Some stands have a short bunchgrass layer of <i>Poa secunda</i>. Broad-leaved herbs typically contribute little to the composition of individual sites, although a wide variety of species can grow in these communities. Frequently observed forbs are <i>Lupinus leucophyllus, Calochortus macrocarpus, Astragalus bisulcatus</i>, and <i>Erigeron pumilus</i>. Annual grasses and forbs are common and can be diverse. Disturbed sites will have <i>Bromus tectorum</i> and <i>Vulpia bromoides</i>, among many other exotic species. A diverse ground moss and lichen layer can cover much of the space between vascular plants, although it is displaced with ground disturbance. Climatically, this community occurs on cooler and more moist sites than sites of <i>~Artemisia tridentata ssp. wyomingensis / Hesperostipa comata</i> Shrubland (CEGL001051)$$. 
Accession Code: VB.CC.34065.CEGL001539
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:   UID: ELEMENT_GLOBAL.2.688397 NatureServe ExplorerNatureServe Explorer logo
  Translated: Threetip Sagebrush / Needle-and-Thread Shrub Herbaceous Vegetation
  Scientific: Artemisia tripartita ssp. tripartita / Hesperostipa comata Shrub Herbaceous Vegetation
  Code: CEGL001539