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Pseudoroegneria spicata - Eriogonum brevicaule Sparse Vegetation | NatureServe Biotics 2019
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Name: Pseudoroegneria spicata - Eriogonum brevicaule Sparse Vegetation Reference: NatureServe Biotics 2019 Description: This sparse vegetation association occurs within the Bighorn Basin of south-central Montana. The habitat consists of very arid, steep, highly eroded and eroding slopes with southern or western aspects. These "badland" environments form a band on the slopes of the Pryor Mountains from 1280-1525 m elevation. This community likely occurs in similar "badlands" habitats in adjacent areas in Wyoming. Soils are deep, alkaline sandy clay or clay derived from shale, bentonite, claystone or sandstone interbedded with clay. The soil surface has high cover of gravel and cobbles. Cryptogamic soil crusts may form on gentler, less disturbed slopes. Stands are characterized by a sparse herbaceous layer that is codominated by <i>Pseudoroegneria spicata</i> and <i>Eriogonum brevicaule</i>. The total vegetation cover is typically less that 25% and is typically codominated by the cool-season, medium-tall bunchgrass <i>Pseudoroegneria spicata</i> (7% mean cover) and the warm-season, perennial forb <i>Eriogonum brevicaule</i> (8% mean cover). Other species may include scattered shrubs, such as <i>Ericameria nauseosa, Gutierrezia sarothrae, Atriplex confertifolia</i>, the grasses <i>Achnatherum hymenoides</i> and <i>Poa secunda</i>, and the forbs <i>Arenaria hookeri, Cryptantha</i> spp. and <i>Machaeranthera grindelioides</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:30576-{AFF0A55E-265F-46B7-A308-5E815B7B25D0} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: ongoing
	status: accepted Community's Parent: Ephedra spp. - Leymus salinus - Eriogonum corymbosum Badlands Cold Desert Sparse Vegetation Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.684734 NatureServe Explorer   Code: CEGL001667   Translated: Bluebunch Wheatgrass - Shortstem Buckwheat Sparse Vegetation   Scientific: Pseudoroegneria spicata - Eriogonum brevicaule Sparse Vegetation (convergence) and Synonyms: (similar) Pseudoroegneria spicata - Eriogonum brevicaule Sparse Vegetation (similar) CEGL001667 (similar) Pseudoroegneria spicata - Eriogonum brevicaule Sparse Vegetation