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Ericameria nauseosa - Eriogonum leptocladon - Tetradymia tetrameres Sparse Scrub Alliance | NatureServe Biotics 2019
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Name: Ericameria nauseosa - Eriogonum leptocladon - Tetradymia tetrameres Sparse Scrub Alliance
Reference: NatureServe Biotics 2019
Description: This sparse shrubland alliance of the western U.S. has open and low vegetative cover from 15 to 50%. Dominant diagnostic shrub species are <i>Ericameria nauseosa, Eriogonum leptocladon</i>, and/or <i>Tetradymia tetrameres</i>. Dominant and consistently present understory herbaceous species include <i>Achnatherum hymenoides, Leymus flavescens, Muhlenbergia pungens</i>, and/or <i>Psoralidium lanceolatum</i>. This sparse community is characteristic of flat to rolling areas of sandsheets, stabilized or moving sand dunes, sand blowouts, or colluvial slopes, between 1220 and 2505 m (4000-8218 feet) elevation. Sites include valley floors, floodplains, and stream terraces, are gentle to moderately sloping, but range from flat to steep and may occur on any aspect. Soils are sands, loamy sands and sandy loams derived from local eroding sandstone or eolian sands. Most of the unvegetated surface is bare soil, although incipient biological soil crusts (consisting mostly of dark cyanobacteria) may cover up to 20% of the ground in more stable sites. 
Accession Code: urn:lsid:vegbank.org:commConcept:39348-{1384058A-5907-4B98-8614-37C6BEB17908}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 27-Sep-2016 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.935193 NatureServe ExplorerNatureServe Explorer logo
  Code: A4149
  Translated: Rubber Rabbitbrush - Sand Buckwheat - Four-part Horsebrush Sparse Scrub Alliance
  Common: Rubber Rabbitbrush - Sand Buckwheat - Four-part Horsebrush Sparse Scrub
  Scientific: Ericameria nauseosa - Eriogonum leptocladon - Tetradymia tetrameres Sparse Scrub Alliance