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Puccinellia nuttalliana Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Puccinellia nuttalliana Herbaceous Vegetation Reference: Western Ecology Working Group of... Description: This wetland association is described from a high-elevation (2900 m) park in central Colorado and in southwestern and central Montana, but likely occurs elsewhere across the western and northern Great Plains and the western U.S. and Canada. While the dominant species occurs over a broad geographic range, it has quite specific habitat needs requiring moist soils of intermediate salinity in seasonally wet meadow habitats. Site topography is generally flat with poor drainage. In South Park, Colorado, there is often a small microtopography of hummocks which affects the water relations and therefore species composition. The soils are moist, saline and alkaline, derived from calcareous shales. The snow/rain- and groundwater-saturated soils usually dry out during the growing season. Communities form a ring just above the succulent plant associations associated with playas, salt flats and saline lakes, or may occur as patches along intermittent drainages. They exist in saline soils that range from 0.7-1% total salts. The pH levels are commonly very alkaline. The wetland vegetation is characterized by the dominance of Puccinellia nuttalliana in the graminoid layer. Distichlis spicata or Hordeum jubatum may codominate is some stands. The forb layer is relatively sparse and is often composed of Salicornia rubra or Triglochin maritima. Diagnostic of this herbaceous wetland association is the dominance of Puccinellia nuttalliana.  Accession Code: VB.CC.25034.PUCCINELLIANUTT 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: Puccinellia nuttalliana Intermittently Flooded Herbaceous Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Nuttall's Alkali Grass Herbaceous Vegetation   UID: ELEMENT_GLOBAL.2.688115 NatureServe Explorer   Code: CEGL001799   Scientific: Puccinellia nuttalliana Herbaceous Vegetation (convergence) and Synonyms: (undetermined) Puccinellia nuttalliana Herbaceous Vegetation