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Pascopyrum smithii - Eleocharis spp. Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Pascopyrum smithii - Eleocharis spp. Herbaceous Vegetation Reference: Western Ecology Working Group of... Description: This association includes stands of herbaceous vegetation growing in periodically inundated, small playas on the northern Great Plains. The sites supporting this association are closed basins (playas) of <1 ha with fine-textured soils that impede drainage; consequently the playas are flooded periodically. The small basins supporting this association have standing water during 'the wet seasons,' presumably meaning mainly in the spring and also after heavy summer rains. Pascopyrum smithii and Eleocharis spp. (Eleocharis acicularis or Eleocharis palustris or both) dominate the vegetation, and Hordeum brachyantherum, Juncus balticus, and Alopecurus spp. often are present. Stands of this type typically include two zones, resulting from differences in the period of inundation. The lowest part of the stand, which is inundated most often and for the longest time, is dominated by Eleocharis acicularis, and may contain Hordeum brachyantherum, Juncus balticus, and Alopecurus aequalis or Alopecurus carolinianus, and bare soil accounts for about 75% of the ground surface; the higher part of the stand is dominated by Pascopyrum smithii and may contain substantial amounts of Carex douglasii and Vulpia octoflora (= Festuca octoflora). The species common in the surrounding vegetation are absent from stands of this type, or contribute little cover.  Accession Code: VB.CC.18722.PASCOPYRUMSMITH 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: Pascopyrum smithii Temporarily Flooded Herbaceous Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Western Wheatgrass - Spikerush species Herbaceous Vegetation   UID: ELEMENT_GLOBAL.2.684905 NatureServe Explorer   Code: CEGL001581   Scientific: Pascopyrum smithii - Eleocharis spp. Herbaceous Vegetation   Common: Western Wheatgrass - Spikerush Mixedgrass Prairie (convergence) and Synonyms: (undetermined) Pascopyrum smithii - Eleocharis spp. Herbaceous Vegetation