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Sedum pulchellum Alkaline Bedrock Herb Alliance | NatureServe Biotics 2019
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Name: Sedum pulchellum Alkaline Bedrock Herb Alliance
Reference: NatureServe Biotics 2019
Description: This alliance consists of shallow-soil glades of the southeastern United States. <i>Sedum pulchellum</i> is characteristic and often forms dense mats. In addition to <i>Sedum pulchellum</i> (which has been characterized as being annual, biennial, or perennial), the vegetation consists largely of annuals (<i>Leavenworthia</i>) or nonvascular plants (e.g., <i>Nostoc</i>, a blue-green alga or cyanobacterium). <i>Phemeranthus calcaricus</i> is actually a perennial. In Arkansas examples, herbaceous associates include <i>Agrostis elliottiana, Coreopsis lanceolata, Croton michauxii var. ellipticus, Danthonia spicata, Hordeum pusillum, Plantago aristata</i>, and <i>Ruellia humilis</i>. Vernal pools or depressions in the substrate which hold moisture play an important role in the dynamics and persistence of this vegetation. In Tennessee, this alliance occurs over limestone or glauconite; in Arkansas, it occurs over shale. 
Accession Code: urn:lsid:vegbank.org:commConcept:38280-{2103A11F-A88E-4686-851A-FDBDDEE6D8E1}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Sep-2014 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.899177 NatureServe ExplorerNatureServe Explorer logo
  Code: A1820
  Translated: Widow's-cross Alkaline Bedrock Herb Alliance
  Common: Interior Plateau Alkaline Glade
  Scientific: Sedum pulchellum Alkaline Bedrock Herb Alliance
(convergence) and Synonyms:
(similar) A.1820
(similar) Sedum pulchellum Saturated Herbaceous Alliance