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Amaranthus palmeri Ruderal Grassland | NatureServe Biotics 2019
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Name: Amaranthus palmeri Ruderal Grassland
Reference: NatureServe Biotics 2019
Description: This vegetation type occurs on the valley floor at Buenos Aires National Wildlife Refuge, Arizona, and elsewhere in the desert southwestern U.S. and Sonora where disturbance by cultivation, forage production (conversion to sorghum) or heavy grazing by livestock has reduced natural perennial cover in what was likely desert grasslands. Sites are typically flat to gently sloping basins and plains that may be intermittently flooded. Soils are variable but typically finer textured silt loam or clays. The vegetation is characterized by a sparse to dense herbaceous layer dominated by the native annual forb <i>Amaranthus palmeri</i>; it lacks significant (&lt;10% cover) perennial vegetation to be classified as a perennial type. Associated species are sometimes numerous and include scattered shrubs, grasses and forbs such as <i>Chenopodium berlandieri, Chloris virgata, Eragrostis cilianensis, Eragrostis pectinacea, Eriochloa acuminata, Ipomoea</i> spp., <i>Kallstroemia grandiflora, Leptochloa panicea ssp. brachiata, Prosopis velutina</i>, and <i>Solanum elaeagnifolium</i>. 
Accession Code: urn:lsid:vegbank.org:commConcept:34090-{E3811DF5-01A0-44DE-8711-F11188DB9D93}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 17-Aug-2007 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.806260 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL005327
  Translated: Carelessweed Ruderal Grassland
  Scientific: Amaranthus palmeri Ruderal Grassland
(convergence) and Synonyms:
(similar) Amaranthus palmeri Herbaceous Vegetation