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Muhlenbergia filiculmis Grassland | NatureServe Biotics 2019
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Name: Muhlenbergia filiculmis Grassland Reference: NatureServe Biotics 2019 Description: This association occurs in Colorado on xeric grassland sites of higher elevations (2700-3085 m [8860-10,120 feet]) in areas of scant rainfall. In the San Juan Mountains and Rampart ranges, it occurs primarily on volcanically derived soils, and on the Rio Grande it is found on alluvial benches. In the San Juan Mountains, Tertiary volcanic rocks overlying Precambrian crystalline and sedimentary rocks are the predominant parent materials and surface rocks for this association. Fifty percent or more of the ground surface can be exposed rock. The dominant species, <i>Muhlenbergia filiculmis</i>, tends to form rings or cushions averaging 5-20 cm (2-8 inches) or more in diameter. In Florissant National Monument, this grassland is observed to occur in rings or ovals on ridge and hilltops. <i>Bouteloua gracilis</i> is abundant, and several other grasses, including <i>Festuca arizonica</i> and <i>Koeleria macrantha</i>, are found in scattered patches. Commonly associated forbs include <i>Artemisia frigida, Hymenoxys richardsonii</i>, and <i>Arenaria fendleri</i>. Drier sites within the association tend to have an even greater abundance of <i>Muhlenbergia filiculmis</i> than more mesic sites. ~<i>Festuca arizonica - Muhlenbergia filiculmis</i> Grassland (CEGL001605)$$ occurs in the same area but on steeper more south-facing slopes, and has a much higher amount of <i>Festuca arizonica</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:30689-{53B4B3CE-8860-402E-A849-2C1309D987ED} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 12-Jul-2002 to: ongoing
	status: accepted Community's Parent: Festuca arizonica - Muhlenbergia montana - Poa fendleriana Southern Rocky Mountain Montane Grassland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.685544 NatureServe Explorer   Code: CEGL001780   Translated: Slim-stem Muhly Grassland   Scientific: Muhlenbergia filiculmis Grassland (convergence) and Synonyms: (similar) CEGL001780 (similar) Muhlenbergia filiculmis Herbaceous Vegetation (similar) Muhlenbergia filiculmis Herbaceous Vegetation