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Leymus triticoides Temporarily Flooded Herbaceous Alliance | Western Ecology Working Group of...
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Name: Leymus triticoides Temporarily Flooded Herbaceous Alliance Reference: Western Ecology Working Group of... Description: This alliance is described from the Warner Valley of southeastern Oregon and the Cow Creek Basin in northwestern Nevada. Elevations range from 1250-1600 m. The climate is arid with mostly winter precipitation ranging from 10-25 cm annually. Stands occur in valleys in drainage bottoms, poorly drained floodplains, and historic lake basins. Sites are typically flat, but include moderate slopes (to 18%). Stands are found on the less xeric northeastern and eastern aspects in Nevada. Soils are typically poorly drained, alkaline, with sandy loam to clay loam texture. The water table is shallow and causes mottles in the soil. Stands have a moderate herbaceous layer (50-80% cover) codominated by the perennial graminoids Leymus triticoides (= Elymus triticoides) with Poa secunda or Carex spp. Other frequent graminoid species include Distichlis spicata, Hordeum brachyantherum ssp. californicum (= Hordeum californicum), Hordeum jubatum, Juncus balticus, and forbs, such as Achillea millefolium, Agoseris glauca, Iris missouriensis, Scirpus spp., Triglochin maritima, and Nitrophila occidentalis, in the saline/alkaline playas. Adjacent communities are shrublands dominated by Artemisia tridentata.  Accession Code: VB.CC.20101.LEYMUSTRITICOID Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 01-May-2019
	status: accepted This Community's Level: Alliance This Community's Children: [none]		Names:   Scientific: Leymus triticoides Temporarily Flooded Herbaceous Alliance   Translated: Beardless Lyme Grass Temporarily Flooded Herbaceous Alliance   UID: HIGHER_CLASS_UNIT.2.124894 NatureServe Explorer   Code: A.1353