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Artemisia arbuscula ssp. longiloba Shrub Herbaceous Alliance | Western Ecology Working Group of...
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Name: Artemisia arbuscula ssp. longiloba Shrub Herbaceous Alliance
Reference: Western Ecology Working Group of...
Description: This shrub herbaceous alliance occurs in the Intermountain West, into the southern Rocky Mountains and in the western Great Plains. Perennial grasses are prominent with Artemisia arbuscula ssp. longiloba dominating the open to moderately dense low-shrub layer. Stands occur on a variety of landforms, from flats and depressions to slopes and ridges. Soils are generally characterized by a heavy clay subsoil occurring within 25 cm of the soil surface, which restricts rooting depth. Soils are also alkaline and calcareous. The vegetation is characterized by a moderate to dense herbaceous layer dominated by perennial graminoids. Dominant to common grass species include Danthonia parryi, Elymus lanceolatus, Festuca idahoensis, Festuca thurberi, Pascopyrum smithii, Poa secunda, and Pseudoroegneria spicata. Other perennial grasses that may be present include Achnatherum hymenoides (= Oryzopsis hymenoides), Elymus elymoides, Hesperostipa comata (= Stipa comata), and Koeleria macrantha. Forb cover is typically minor. Shrub associates include Artemisia tridentata ssp. wyomingensis, Artemisia tridentata ssp. vaseyana, Artemisia tripartita, Artemisia nova, Chrysothamnus viscidiflorus, Gutierrezia sarothrae, and Purshia tridentata. Diagnostic of this alliance is a moderate (>20% cover) perennial graminoid layer with an Artemisia arbuscula ssp. longiloba-dominated low-shrub layer that has 10-40% cover. At least 40% of the total shrub cover is Artemisia arbuscula ssp. arbuscula. 
Accession Code: VB.CC.18265.ARTEMISIAARBUSC
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 16-Apr-2002 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: Artemisia arbuscula ssp. longiloba Shrub Herbaceous Alliance
  Translated: Alkali Sagebrush Shrub Herbaceous Alliance
  UID: HIGHER_CLASS_UNIT.2.126263 NatureServe ExplorerNatureServe Explorer logo
  Code: A.2552