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Isocoma acradenia Wet Shrubland | NatureServe Biotics 2019
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Name: Isocoma acradenia Wet Shrubland Reference: NatureServe Biotics 2019 Description: This goldenbush shrubland association is currently described from Grand Canyon National Park and Grand Canyon-Parashant National Monument in Arizona. More survey and classification work are needed to fully characterize this type. It occurs in low-level drainage channels and valley bottoms, and on adjacent benches and terraces, typically in areas which receive additional moisture compared to adjacent habitats. It occurs at 400 to 1100 m (1300-3750 feet) elevation, on gentle slopes (2-5°), across all aspects. Soils are sandy or sometimes silty, often alkaline, and moderately well-drained; cryptogamic soil crust is relatively common. <i>Isocoma acradenia</i> characterizes this association and dominates the short-shrub layer. <i>Tamarix ramosissima</i> and <i>Acacia greggii</i> occasionally occur as associates in the tall-shrub stratum, while various short shrubs, including <i>Encelia farinosa, Bebbia juncea, Baccharis emoryi, Ephedra aspera, Salix exigua</i>, and <i>Trixis californica</i>, may sporadically occur. Dwarf-shrubs are essentially lacking in this community, although <i>Gutierrezia sarothrae</i> occasionally occurs. The graminoid layer is fairly sparse, quite variable, and may include <i>Aristida purpurea, Sporobolus cryptandrus</i>, and <i>Sporobolus flexuosus</i>, as well as the non-natives <i>Bromus rubens</i> and <i>Bromus tectorum</i>. Forbs are similarly sparse and variable; <i>Artemisia ludoviciana, Thymophylla pentachaeta</i>, and <i>Aletes macdougalii</i> are somewhat common.  Accession Code: urn:lsid:vegbank.org:commConcept:34155-{8F432206-C62F-4655-96E7-5FD0D80FDE2B} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 30-Jul-2010 to: ongoing
	status: accepted Community's Parent: Suaeda moquinii - Salicornia rubra - Isocoma acradenia Alkaline Wet Scrub Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.841797 NatureServe Explorer   Code: CEGL005395   Translated: Alkali Goldenbush Wet Shrubland   Scientific: Isocoma acradenia Wet Shrubland (convergence) and Synonyms: (similar) Isocoma acradenia Shrubland