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Larrea tridentata - Ambrosia dumosa - Yucca schidigera Desert Shrubland | NatureServe Biotics 2019
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Name: Larrea tridentata - Ambrosia dumosa - Yucca schidigera Desert Shrubland Reference: NatureServe Biotics 2019 Description: This scrub association is found at mid elevations in the Colorado and Mojave deserts in Arizona, California and southern Nevada. Vegetation is characterized by an open to moderate, often patchy shrub canopy (5-33% cover) codominated by <i>Ambrosia dumosa</i> and <i>Larrea tridentata</i> with <i>Yucca schidigera</i> characteristically present at lower cover. Many other shrubs are frequently present, such as <i>Cylindropuntia</i> spp., <i>Ferocactus cylindraceus</i>, and <i>Krameria</i> spp. If present, the herbaceous layer is variable, ranging from sparse to dense and composed of mixed grasses and forbs such as <i>Achnatherum</i> sp., <i>Chorizanthe rigida, Pleuraphis rigida, Sphaeralcea ambigua, Xylorhiza tortifolia</i>, and exotic annuals <i>Bromus tectorum, Erodium cicutarium</i>, and <i>Schismus barbatus</i>. Stands occur on alluvial deposits, washes, alluvial fan/bajadas, erosional highlands, and ridgetops ranging from 500-1200 m elevation. Sites occur on gentle to moderate slopes on variable aspects. Soils are coarse-textured with moderate to high cover of gravel and are derived from a variety of substrates such as sandy alluvium, conglomerate, gneissose, granite, sandstone, schist, and tephrite (basanite) parent materials  Accession Code: urn:lsid:vegbank.org:commConcept:34435-{5F03C960-6A0A-4A48-8C3C-AA3B99389808} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 28-Nov-2016 to: ongoing
	status: accepted Community's Parent: Larrea tridentata - Ambrosia dumosa Bajada & Valley Desert Scrub Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.971721 NatureServe Explorer   Code: CEGL005762   Translated: Creosotebush - Burrobush - Mojave Yucca Desert Shrubland   Scientific: Larrea tridentata - Ambrosia dumosa - Yucca schidigera Desert Shrubland