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Puccinellia lemmonii - Poa secunda Seasonally Flooded Herbaceous Vegetation | Western Ecology Working Group of...
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Name: Puccinellia lemmonii - Poa secunda Seasonally Flooded Herbaceous Vegetation
Reference: Western Ecology Working Group of...
Description: This is a valley bottom, semi-alkaline grassland known from the Klamath Basin in south-central Oregon, and from the Baker Valley in northeastern Oregon. As a valley bottom type, it is always found on flat, deep soil areas, usually of alluvial or pluvial origin, between 760-1220 m (2500-4000 feet) in elevation. It usually occurs along the edges of lakes, backwater oxbows or large wetlands, in valleys that have moderately alkaline soils. Puccinellia lemmonii and Poa secunda (= ssp. juncifolia and = ssp. nevadensis$) dominate these grasslands. Hordeum jubatum is often present, and occasionally codominant, along with Elymus elymoides and Juncus species. Forbs (Castilleja pilosa, Erigeron filifolius, Astragalus purshii, Astragalus applegatei) and bare ground provide a significant part of the overall cover. In addition, all known sites had some (between 1-5%) cover of Ericameria nauseosa (= Chrysothamnus nauseosus), although this is assumed to be an artifact of historic grazing. At the wetter end, this type grades into Deschampsia caespitosa or Carex wetlands, and at the drier end into playa, or more commonly sagebrush habitats. 
Accession Code: VB.CC.19620.PUCCINELLIALEMM
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: 17-Nov-2014
      Names:   Translated: Lemmon's Alkali Grass - Curly Bluegrass Seasonally Flooded Herbaceous Vegetation
  UID: ELEMENT_GLOBAL.2.684148 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL001658
  Scientific: Puccinellia lemmonii - Poa secunda Seasonally Flooded Herbaceous Vegetation
  Common: Curly Bluegrass - Lemmon's Alkali Grass - Bottlebrush Squirreltail Grassland
(convergence) and Synonyms:
(undetermined) Puccinellia lemmonii - Poa secunda Seasonally Flooded Herbaceous Vegetation