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A.1846 | EcoArt 2002
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Name: A.1846
Reference: EcoArt 2002
Description: This alliance contains one community characterized by large expanses of exposed granite surfaces, with scattered soil-filled depressions, crevices, gravel areas, and shallow pools. Vegetative cover is sparse and limited to areas where shallow sand or gravel accumulate. Typical species include ~Sedum nuttallianum, Plantago wrightiana, Talinum parviflorum, Helenium amarum, Campanula reverchonii, Aphanostephus skirrhobasis, Hypericum gentianoides$. Areas with deeper soils are dominated by ~Schizachyrium scoparium$ occurring with other grasses such as ~Bouteloua hirsuta, Bouteloua curtipendula$, and ~Aristida purpurea$. Bare rock is occupied by scattered patches of crustose and foliose lichens, mosses, and several ferns and fern allies including ~Selaginella peruviana, Selaginella arenicola ssp. riddellii, Cheilanthes lindheimeri, Cheilanthes tomentosa, Woodsia obtusa ssp. occidentalis$, and ~Pellaea ternifolia$. Narrow, shallow crevices harbor species tolerant of the most xeric conditions including ~Echinocereus reichenbachii, Eriogonum tenellum$, and ~Opuntia leptocaulis$. 
Accession Code: VB.CC.1545.A1846
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: VII.A.2.N.a
  • This Community's Level: Alliance
  • This Community's Children: [none]
Names:   Scientific: SEDUM NUTTALLIANUM SPARSELY VEGETATED ALLIANCE
  Code: A.1846
  Common: Nuttall's Stonecrop Sparsely Vegetated Alliance
(convergence) and Synonyms:
(undetermined) Sedum nuttallianum Sparsely Vegetated Alliance