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Ephedra trifurca / Bouteloua eriopoda Shrub Grassland | NatureServe Biotics 2019
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Name: Ephedra trifurca / Bouteloua eriopoda Shrub Grassland
Reference: NatureServe Biotics 2019
Description: This Chihuahuan Desert association occurs on the gentle slopes of alluvial fans on moderate or cold aspects between elevations of 1370 and 1525 m (4500-5000 feet). The landscape is characterized by broad alluvial fans, which are dissected by shallow arroyos. Substrates are alluvial deposits and soils are generally well-developed, stable and surface textures range from sand loam to sandy clay loams. The grass layer is dominated by <i>Bouteloua eriopoda</i> with scattered <i>Ephedra trifurca</i> in the overstory. Occasionally, <i>Bouteloua eriopoda</i> is nearly absent and <i>Aristida purpurea</i> will dominate. This phase is probably disturbance related. The grassland is usually luxuriant in cover and high in diversity. <i>Bouteloua gracilis, Muhlenbergia porteri, Setaria leucopila, Aristida ternipes</i>, and <i>Dasyochloa pulchella</i> are often present. The shrub overstory is well represented and evenly distributed. This layer is moderate in diversity and generally includes <i>Gutierrezia sarothrae, Prosopis glandulosa, Opuntia phaeacantha, Cylindropuntia imbricata, Yucca elata</i> and <i>Artemisia filifolia</i>. Though <i>Ephedra trifurca</i> is usually clearly the dominant, on occasion it is very scattered, especially in areas of transition. The forb layer is very diverse and usually well-represented in cover. <i>Baileya multiradiata, Machaeranthera tanacetifolia, Solanum elaeagnifolium</i> and <i>Lepidium montanum</i> are fairly constant species. The forbs are scattered and grow under or between shrub canopies. 
Accession Code: urn:lsid:vegbank.org:commConcept:30641-{7A8E8192-FD3A-41A9-A2A9-F8F2F14DF102}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.686271 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL001732
  Translated: Longleaf Joint-fir / Black Grama Shrub Grassland
  Scientific: Ephedra trifurca / Bouteloua eriopoda Shrub Grassland
(convergence) and Synonyms:
(similar) CEGL001732
(similar) Ephedra trifurca / Bouteloua eriopoda Shrub Herbaceous Vegetation
(similar) Ephedra trifurca / Bouteloua eriopoda Shrub Herbaceous Vegetation