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Artemisia tridentata (ssp. tridentata, ssp. xericensis) / Pseudoroegneria spicata - Poa secunda Shrub Grassland | NatureServe Biotics 2019
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Name: Artemisia tridentata (ssp. tridentata, ssp. xericensis) / Pseudoroegneria spicata - Poa secunda Shrub Grassland Reference: NatureServe Biotics 2019 Description: This is a shrub herbaceous community found in Oregon on deep loess or alluvial soils. It is found on alluvial terraces, which are flat, or on Palouse (loess) hills, in which case it is found on flats or south-facing slopes. Soils are developed from loess deeper than 1.5 m (5 feet), and virtually free of gravel and stones. There are very few examples of this type left, and therefore, it has been poorly sampled. <i>Artemisia tridentata</i> is present in all stands, with cover ranging from 1-15% for stands in excellent condition, and greater in poorer condition stands. In terraces, <i>Artemisia tridentata ssp. tridentata</i> is clearly the subspecies present. In some of the loess stands, characterization of the sagebrush subspecies is more difficult. <i>Pseudoroegneria spicata</i> has up to 55% of the cover. Epigeous cryptogams, primarily lichens, occupy up to 13% of the cover and are characteristic of high-quality examples. <i>Poa secunda</i> can occupy up to 9% cover, while <i>Phlox longifolia, Plectritis macrocera, Microsteris gracilis, Lithophragma glabrum</i>, and <i>Plantago patagonica</i> are commonly found at low cover. <i>Bromus tectorum</i> dominates disturbed areas (ground-squirrel sites), even in the best condition stands.  Accession Code: urn:lsid:vegbank.org:commConcept:29928-{E6B7B900-4626-4A98-93F6-511A82C820C5} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: ongoing
	status: accepted Community's Parent: Artemisia tridentata ssp. tridentata - Artemisia tridentata ssp. xericensis Mesic Steppe & Shrubland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.686098 NatureServe Explorer   Code: CEGL001019   Translated: (Basin Big Sagebrush, Foothill Big Sagebrush) / Bluebunch Wheatgrass - Sandberg Bluegrass Shrub Grassland   Scientific: Artemisia tridentata (ssp. tridentata, ssp. xericensis) / Pseudoroegneria spicata - Poa secunda Shrub Grassland (convergence) and Synonyms: (similar) CEGL001019 (similar) Artemisia tridentata (ssp. tridentata, ssp. xericensis) / Pseudoroegneria spicata - Poa secunda Shrub Herbaceous Vegetation (similar) Artemisia tridentata (ssp. tridentata, ssp. xericensis) / Pseudoroegneria spicata - Poa secunda Shrub Herbaceous Vegetation