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Purshia tridentata - Ericameria nauseosa Shrubland | Western Ecology Working Group of...
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Name: Purshia tridentata - Ericameria nauseosa Shrubland Reference: Western Ecology Working Group of... 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 community occurs on partially stabilized sand, in a region of actively moving dunes. It is found extending from roughly 150-200 m (to the windward) from the active dune edge. At these sites wind-blown sand deposits have been stable for 50-60 years. 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 association is composed of a low to moderately tall-shrub layer and a sparse herbaceous understory. The shrub layer is dominated by the broad-leaved, deciduous Purshia tridentata (50-60% cover) and the semi-deciduous Ericameria nauseosa (= Chrysothamnus nauseosus) (5-15% cover), with Chrysothamnus viscidiflorus occasionally present. The rhizomatous perennial grass Elymus lanceolatus and the bunchgrass Hesperostipa comata (= Stipa comata) compose the herbaceous stratum but are sparsely represented. A few perennial forbs are infrequently present, including Oxytheca dendroidea (= Eriogonum dendroideum), Erysimum capitatum, and Phacelia hastata var. hastata (= Phacelia leucophylla). High litter cover (>60%) indicates the relative stability of the sand where this association is found. Few other herbaceous species are present.  Accession Code: VB.CC.25360.PURSHIATRIDENTA 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: Purshia tridentata Shrubland Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Bitterbrush - Rubber Rabbitbrush Shrubland   UID: ELEMENT_GLOBAL.2.687885 NatureServe Explorer   Code: CEGL001056   Scientific: Purshia tridentata - Ericameria nauseosa Shrubland   Common: Antelope Bitterbrush - Rubber Rabbitbrush Shrubland (convergence) and Synonyms: (undetermined) Purshia tridentata - Ericameria nauseosa Shrubland