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Festuca idahoensis - Koeleria macrantha Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Festuca idahoensis - Koeleria macrantha Herbaceous Vegetation Reference: Western Ecology Working Group of... Description: This association is described from sites on the dissected basalt plateaus, biscuit-and-swale (mound) formations, and high- and low-elevation canyon and mountain slopes of the lower Snake River drainage. Considerable variability in species composition occurs over this range of physical environmental settings. The association occurs on relatively deep loessal soils that overlay basalt rock or colluvium. The association includes the most productive grassland stands in the Blue Mountains ecoregional section. Stands occur on gentle to steep, northwest- to northeast-facing slopes at 1200-6600 feet elevation. This plant association is characterized by a dense sward of bunch grasses and a rich assemblage of forbs. Festuca idahoensis is abundant. Pseudoroegneria spicata is often the codominant bunch grass, though the presence of Koeleria macrantha on these sites is indicative of more mesic environments, compared to adjacent Festuca idahoensis - Pseudoroegneria spicata communities. Consistent associate forbs include Triteleia grandiflora var. grandiflora (= Brodiaea douglasii), Frasera albicaulis, Castilleja hispida, Hieracium cynoglossoides (= Hieracium albertinum), and Arnica sororia.  Accession Code: VB.CC.23690.FESTUCAIDAHOENS 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: Festuca idahoensis Herbaceous Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Idaho Fescue - Prairie Junegrass Herbaceous Vegetation   UID: ELEMENT_GLOBAL.2.686449 NatureServe Explorer   Code: CEGL001620   Scientific: Festuca idahoensis - Koeleria macrantha Herbaceous Vegetation (convergence) and Synonyms: (undetermined) Festuca idahoensis - Koeleria macrantha Herbaceous Vegetation