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Abies grandis / Spiraea betulifolia Forest | Western Ecology Working Group of...
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Name: Abies grandis / Spiraea betulifolia Forest Reference: Western Ecology Working Group of... Description: This forest association occurs within the maritime-influenced climatic region of the northern Rocky Mountains from northeastern Oregon and Idaho. Ecoregional sections primarily include the Blue Mountains, Idaho Batholith and possibly the Bitterroot Mountains. The association represents the warmest and driest extreme for the occurrence of Abies grandis. Stands occur on gentle to moderately steep, south- to west-facing bench, lower- and upper-slope positions at 975-1950 m (3200-6400 feet) elevation. Soil parent materials are basalt, loess-ash, and (more rarely) granite. Pseudotsuga menziesii and Pinus ponderosa are often dominant in early- and mid-seral stands. These fire-resistant species persist in the forest overstory and provide important large diameter stem structure in mid- and late-seral stands. Stands are characterized by an open, low-shrub sward dominated by Spiraea betulifolia. Symphoricarpos albus is usually well-represented. Calamagrostis rubescens is often well-represented to abundant. Arnica cordifolia, Chimaphila umbellata, Fragaria vesca, and Osmorhiza berteroi (= Osmorhiza chilensis) are commonly associated herbaceous species. Historic disturbance regimes in these stands were primarily frequent low- to moderate-intensity fire.  Accession Code: VB.CC.19594.ABIESGRANDISSPI 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: Abies grandis Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Grand Fir / Shinyleaf Meadowsweet Forest   UID: ELEMENT_GLOBAL.2.683833 NatureServe Explorer   Code: CEGL000281   Scientific: Abies grandis / Spiraea betulifolia Forest (convergence) and Synonyms: (undetermined) Abies grandis / Spiraea betulifolia Forest