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Ephedra trifurca / Bouteloua eriopoda Shrub Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Ephedra trifurca / Bouteloua eriopoda Shrub Herbaceous Vegetation Reference: Western Ecology Working Group of... Description: This Chihuahuan Desert association occurs on the gentle slopes of alluvial fans on moderate or cold aspects between elevations of 4500 and 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 Bouteloua eriopoda with scattered Ephedra trifurca in the overstory. Occasionally, Bouteloua eriopoda is nearly absent and Aristida purpurea will dominate. This phase is probably disturbance related. The grassland is usually luxuriant in cover and high in diversity. Bouteloua gracilis, Muhlenbergia porteri, Setaria leucopila, Aristida ternipes, and Dasyochloa pulchella (= Erioneuron pulchellum) are often present. The shrub overstory is well represented and evenly distributed. This layer is moderate in diversity and generally includes Gutierrezia sarothrae, Prosopis glandulosa, Opuntia phaeacantha, Opuntia imbricata, Yucca elata and Artemisia filifolia. Though Ephedra trifurca 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. Baileya multiradiata, Machaeranthera tanacetifolia, Solanum elaeagnifolium and Lepidium montanum are fairly constant species. The forbs are scattered and grow under or between shrub canopies.  Accession Code: VB.CC.22802.EPHEDRATRIFURCA Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Bouteloua eriopoda Xeromorphic Shrub Herbaceous Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Longleaf Joint-fir / Black Grama Shrub Herbaceous Vegetation   UID: ELEMENT_GLOBAL.2.686271 NatureServe Explorer   Code: CEGL001732   Scientific: Ephedra trifurca / Bouteloua eriopoda Shrub Herbaceous Vegetation (convergence) and Synonyms: (undetermined) Ephedra trifurca / Bouteloua eriopoda Shrub Herbaceous Vegetation