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A.1820 | EcoArt 2002
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Name: A.1820
Reference: EcoArt 2002
Description: This alliance consists of shallow-soil glades of the southeastern United States. ~Sedum pulchellum$ is characteristic, and it often forms dense mats. In addition to ~Sedum pulchellum$ (which has been characterized as being annual, biennial, or perennial), the vegetation consists largely of annuals (~Leavenworthia$) or nonvascular plants (e.g., ~Nostoc$, a blue-green alga or cyanobacterium). ~Talinum calcaricum$ is actually a perennial. In Arkansas examples, herbaceous associates include ~Croton willdenowii, Plantago aristata, Coreopsis lanceolata, Agrostis elliottiana, Danthonia spicata, Hordeum pusillum$, and ~Ruellia humilis$. Vernal pools or depressions in the substrate which hold moisture play an important role in the dynamics and persistence of this vegetation. In Tennessee and Texas, this alliance occurs over limestone or glauconite; in Arkansas, it occurs over shale. 
Accession Code: VB.CC.1523.A1820
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Mar-2005
     
  • status: accepted
  • Community's Parent: V.D.2.N.i
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: SEDUM PULCHELLUM SATURATED HERBACEOUS ALLIANCE
  Code: A.1820
  Common: Widow's-cross Saturated Herbaceous Alliance
(convergence) and Synonyms:
(undetermined) Sedum pulchellum Saturated Herbaceous Alliance