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Hesperostipa comata - Poa secunda Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Hesperostipa comata - Poa secunda Herbaceous Vegetation Reference: Western Ecology Working Group of... Description: This association is endemic to the Palouse Prairie region of Oregon and Washington. Similar sandy soil sites support sparse shrub cover of Purshia tridentata, Artemisia tridentata, or Artemisia tripartita in the Columbia Basin. Sandy to gravelly soils or certain low fertility soils (old weathered volcanic ash) are associated with this type. This community occurs in more climatically moist areas than sites of Artemisia tridentata ssp. wyomingensis / Hesperostipa comata Shrubland (CEGL001051). This is an open to closed vegetation type with most of its total cover found in only the mid-tall bunchgrass lifeform. Ericameria spp. (= Chrysothamnus spp.) can be present or codominant especially on disturbed sites. The general aspect is of a bunchgrass community with Hesperostipa comata (= Stipa comata) dominating the midgrass layer. Some stands have a short bunchgrass layer of Poa secunda. Broad-leaved herbs typically contribute little to composition of individual sites. Annual grasses and forbs are common and can be diverse. In disturbed sites Bromus tectorum and Plantago patagonica are common. A diverse ground moss and lichen layer can cover much of the space between vascular plants, although it can be displaced with ground disturbance.  Accession Code: VB.CC.27370.HESPEROSTIPACOM Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Hesperostipa comata Bunch Herbaceous Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Needle-and-Thread - Curly Bluegrass Herbaceous Vegetation   UID: ELEMENT_GLOBAL.2.683090 NatureServe Explorer   Code: CEGL001704   Scientific: Hesperostipa comata - Poa secunda Herbaceous Vegetation (convergence) and Synonyms: (undetermined) Hesperostipa comata - Poa secunda Herbaceous Vegetation