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Cercocarpus montanus / Hesperostipa comata Shrubland | NatureServe Biotics 2019
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Name: Cercocarpus montanus / Hesperostipa comata Shrubland Reference: NatureServe Biotics 2019 Description: Stands of this association have been described from the eastern flank of the foothills of the northern Front Range in north-central Colorado from Douglas to Larimer counties. This association is found from 1750-2270 m (5700-7440 feet) elevation, on topographic features including hogbacks, ridges, mesas, canyons and slopes. Slopes vary from moderate to steep (up to 60%), and aspects are mostly southerly. Parent materials are primarily igneous and metamorphic residuum and colluvium. Most soils are classified as Entisols. They are poorly developed, well-drained, and coarse-textured, with much exposed bare ground and rock. This is an open-canopy shrubland dominated by the broad-leaved deciduous shrub <i>Cercocarpus montanus</i> (typically with 20-35% canopy cover), with <i>Rhus trilobata</i> always present in lower abundance. The succulent species <i>Opuntia polyacantha</i> is usually present, as well as the suffrutescent species <i>Artemisia frigida, Artemisia ludoviciana</i>, and <i>Eriogonum umbellatum</i>. The herbaceous layer is dominated by the perennial bunchgrass <i>Hesperostipa comata</i>, with 5-20% canopy cover. The other commonly present grass is <i>Bouteloua gracilis</i>. <i>Muhlenbergia montana</i> is typically absent or has low cover. Both perennial and annual forbs occur in the herbaceous layer in low abundance; some of the more important species include <i>Erigeron pumilus, Astragalus parryi</i>, and <i>Allium textile</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:30001-{A9F87A76-4176-4666-B3F5-DD7EBA0AB354} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 04-Aug-2005 to: ongoing
	status: accepted Community's Parent: Amelanchier utahensis - Cercocarpus montanus - Cercocarpus intricatus Shrubland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.688588 NatureServe Explorer   Code: CEGL001092   Translated: Alderleaf Mountain-mahogany / Needle-and-Thread Shrubland   Scientific: Cercocarpus montanus / Hesperostipa comata Shrubland (convergence) and Synonyms: (similar) CEGL001092 (similar) Cercocarpus montanus / Hesperostipa comata Shrubland (similar) Cercocarpus montanus / Hesperostipa comata Shrubland