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Celtis laevigata var. reticulata / Pseudoroegneria spicata Woodland | Western Ecology Working Group of...
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Name: Celtis laevigata var. reticulata / Pseudoroegneria spicata Woodland Reference: Western Ecology Working Group of... Description: This minor woodland association is described from deep canyon bottoms of the Snake and Salmon rivers in Oregon, Washington and Idaho, and possibly occurs in similar habitats in California. These woodlands occur as numerous relatively small stands, dispersed and clustered in valley bottoms along riparian margins, on lower slopes of river terraces near seepage lines, and on scree slopes. Aspects are often southerly, especially at higher elevations. Soils are poorly developed and derived from alluvium and colluvium with bedrock outcrops. Vegetation characteristic of this association typically is an open canopy (36% mean cover) of the small cold-deciduous tree <i>Celtis laevigata var. reticulata</i>. On less favorable sites with shallow rocky soils the trees are shorter and bushier, and the stands resemble tall shrublands. The herbaceous layer is dominated by the perennial bunchgrass <i>Pseudoroegneria spicata</i>. <i>Poa secunda</i> and <i>Aristida purpurea var. longiseta</i> are often present also. Other common species include <i>Erigeron pumilus, Heterotheca villosa, Achillea millefolium</i>, and <i>Scutellaria angustifolia</i>. Ground cover often has significant cover (up to 50%) of rock, lichen and/or litter. Most described stands have been disturbed and have significant cover of introduced annual grasses, including <i>Bromus tectorum, Bromus japonicus, Bromus sterilis</i>, and introduced forbs <i>Hypericum perforatum, Verbascum</i> spp. and <i>Melilotus officinalis</i>. Diagnostic of this woodland association is the open <i>Celtis laevigata var. reticulata</i> tree canopy with <i>Pseudoroegneria spicata</i> present in the herbaceous layer.  Accession Code: VB.CC.33696.CEGL001085 Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 17-Nov-2014 to: 01-May-2019
	status: accepted This Community's Level: association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.683536 NatureServe Explorer   Translated: Netleaf Hackberry / Bluebunch Wheatgrass Woodland   Scientific: Celtis laevigata var. reticulata / Pseudoroegneria spicata Woodland   Code: CEGL001085