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Flourensia cernua Upland Desert Scrub Alliance | NatureServe Biotics 2019
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Name: Flourensia cernua Upland Desert Scrub Alliance Reference: NatureServe Biotics 2019 Description: This upland desert scrub alliance occurs on broad desert plains extending up onto dissected gravelly alluvial fans and piedmonts (bajadas), and foothills in the Chihuahuan Desert (below the chaparral zone). The vegetation is composed of an open to moderately dense, short-shrub layer (&lt;1 m tall) with <i>Flourensia cernua</i> as the dominant component, often forming extensive shrublands. If present, <i>Larrea tridentata</i> and <i>Prosopis glandulosa</i> have relatively low cover and do not codominate the shrub layer. Grasses are common but generally have lower cover than shrubs. Common associates include <i>Bouteloua curtipendula</i> and <i>Achnatherum eminens</i>. Other species present with lower cover may include shrubs such as <i>Acacia constricta, Acacia greggii, Dasylirion</i> spp., <i>Haploesthes greggii, Isocoma pluriflora, Krameria erecta, Larrea tridentata, Cylindropuntia imbricata, Parthenium incanum</i>, and herbaceous species such as <i>Bouteloua ramosa, Bouteloua breviseta</i>, and <i>Chamaesaracha sordida</i>. Substrates are typically coarse-textured loams on gravelly plains and slopes. <i>Flourensia cernua</i>-dominated stands on fine-textured (silty and clayey) soils are not included in this alliance.  Accession Code: urn:lsid:vegbank.org:commConcept:38453-{52FC5834-6B64-4A19-B42B-217A49F45406} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 08-Jan-2014 to: ongoing
	status: accepted Community's Parent: Larrea tridentata - Flourensia cernua - Acacia neovernicosa Chihuahuan Mixed Desert Scrub Group This Community's Level: Alliance This Community's Children: Show/Hide   Flourensia cernua / Achnatherum eminens Shrubland   Flourensia cernua / Bouteloua curtipendula Shrubland		Names:   UID: ELEMENT_GLOBAL.2.899290 NatureServe Explorer   Code: A3165   Translated: American Tarwort Upland Desert Scrub Alliance   Common: American Tarwort Upland Desert Scrub   Scientific: Flourensia cernua Upland Desert Scrub Alliance