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Purshia tridentata - Artemisia tridentata ssp. tridentata Shrubland | NatureServe Biotics 2019
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Name: Purshia tridentata - Artemisia tridentata ssp. tridentata Shrubland Reference: NatureServe Biotics 2019 Description: This plant association is described from data collected in St. Anthony Dunes area, Fremont County, Idaho, within the Snake River Basalts ecoregional section. The plant association occurs in areas of stabilized sands, in a region of actively moving dunes. It is found extending windward at approximately 365 m from the actively moving dune edge. At these sites stable sand deposits are 150 years old or greater. Soils are deep, fine- to medium-grained sand. Despite very low moisture levels during the dry season, soil moisture available to plants is apparently adequate, perhaps due to the low soil moisture tension of sand. The plant association is composed of a dense shrub layer, generally less than 2 m in height, although individuals of all shrub species were occasionally taller. <i>Purshia tridentata</i> and <i>Artemisia tridentata ssp. tridentata</i> provide the most cover, but large clumps (&gt;10 m in diameter) of <i>Prunus virginiana</i> occur patchily in some examples of the association. The understory herbaceous layer is diverse, but is strongly dominated by the perennial forb <i>Balsamorhiza sagittata</i> and the bunchgrass <i>Hesperostipa comata</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:29963-{930F7E90-BCB6-4327-903B-D12241DC3D2B} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 05-May-1993 to: ongoing
	status: accepted Community's Parent: Artemisia tridentata - Mixed Shrub Dry Steppe & Shrubland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.685706 NatureServe Explorer   Code: CEGL001054   Translated: Antelope Bitterbrush - Basin Big Sagebrush Shrubland   Scientific: Purshia tridentata - Artemisia tridentata ssp. tridentata Shrubland (convergence) and Synonyms: (similar) Purshia tridentata - Artemisia tridentata ssp. tridentata Shrubland (similar) CEGL001054 (similar) Purshia tridentata - Artemisia tridentata ssp. tridentata Shrubland