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Purshia tridentata / Carex inops ssp. inops - Achnatherum occidentale Shrub Grassland | NatureServe Biotics 2019
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Name: Purshia tridentata / Carex inops ssp. inops - Achnatherum occidentale Shrub Grassland Reference: NatureServe Biotics 2019 Description: This rare shrubland was described from 5 good-condition plots on flat, stream terraces, floodplains and dry drainages along the eastern side of the Cascade Range in southern Oregon. Elevations are between 1340 and 1650 m. All known sites are from the Winema National Forest, and much of the habitat has been damaged by overuse by cattle. The soils are deep, alluvial sands deposited over Mazama ash and pumice. <i>Purshia tridentata</i> is the dominant shrub, always present between 5 and 20% cover. In poor condition stands <i>Ericameria bloomeri</i> or <i>Ericameria nauseosa</i> are more important. <i>Achnatherum occidentale</i> and <i>Carex inops ssp. inops</i> are codominant on good-condition stands, although with grazing <i>Elymus elymoides</i> increases. Other forbs include <i>Packera cana, Eriogonum umbellatum, Phacelia hastata</i>, and <i>Cistanthe umbellata</i>. This type is easily distinguished by the dominants and its occurrence on alluvial sands on pumice.  Accession Code: urn:lsid:vegbank.org:commConcept:30401-{D9355776-60CC-49B1-9036-D05B6109A606} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 19-Jan-2018 to: ongoing
	status: accepted Community's Parent: Purshia tridentata - Artemisia tridentata Mesic Steppe & Shrubland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.689807 NatureServe Explorer   Code: CEGL001492   Translated: Antelope Bitterbrush / Long-stolon Sedge - Western Needlegrass Shrub Grassland   Scientific: Purshia tridentata / Carex inops ssp. inops - Achnatherum occidentale Shrub Grassland (convergence) and Synonyms: (similar) Purshia tridentata / Carex pensylvanica - Achnatherum occidentale Shrub Herbaceous Vegetation (similar) CEGL001492 (similar) Purshia tridentata / Carex pensylvanica - Achnatherum occidentale Shrub Herbaceous Vegetation