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Sporobolus cryptandrus Shrub Herbaceous Alliance | Western Ecology Working Group of...
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Name: Sporobolus cryptandrus Shrub Herbaceous Alliance Reference: Western Ecology Working Group of... Description: Grasslands in this alliance are described from Montana, Idaho and New Mexico. In New Mexico, the alliance occurs in the northwestern part of the state on alluvial flats at an elevation of approximately 2140 m. Climate is semi-arid with most of the highly variable annual precipitation falling during the summer as high-intensity convectional storms. Sites are nearly level. Soils are calcareous, loamy and shallow (less than 25 cm deep). Soil surface averages 65% bareground, 17% plant litter with little rock. The vegetation is dominated by the perennial bunchgrass Sporobolus cryptandrus with a sparse shrub layer usually dominated by Artemisia tridentata. In New Mexico, a stand has been described where total vegetation canopy cover is 22% with Sporobolus cryptandrus, Artemisia tridentata, and Eriogonum spp., a perennial forb, having canopy cover of 13%, 3% and 2%, respectively. Other common grasses include Achnatherum hymenoides (= Oryzopsis hymenoides), Pascopyrum smithii, Achnatherum robustum (= Stipa robusta), Sporobolus contractus, and Bouteloua gracilis. Other shrubs, such as Ericameria nauseosa (= Chrysothamnus nauseosus), Gutierrezia sarothrae, and Atriplex spp., may also be present. Common forbs, such as Sphaeralcea coccinea and Asteraceae spp., contribute very little to the total cover.  Accession Code: VB.CC.20175.SPOROBOLUSCRYPT Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 01-May-2019
	status: accepted This Community's Level: Alliance This Community's Children: [none]		Names:   Scientific: Sporobolus cryptandrus Shrub Herbaceous Alliance   Translated: Sand Dropseed Shrub Herbaceous Alliance   UID: HIGHER_CLASS_UNIT.2.125529 NatureServe Explorer   Code: A.1525