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Purshia tridentata - Philadelphus lewisii / Poa secunda Shrubland | NatureServe Biotics 2019
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Name: Purshia tridentata - Philadelphus lewisii / Poa secunda Shrubland
Reference: NatureServe Biotics 2019
Description: This association has an open shrub canopy and may occasionally have a sparse tree canopy resulting from scattered <i>Pinus flexilis</i> individuals. The shrub stratum is dominated by <i>Purshia tridentata</i> and <i>Philadelphus lewisii</i>, but <i>Chamaebatiaria millefolium</i> is common as well. Other shrubs such as <i>Ericameria nauseosa, Ribes aureum, Ericameria nana</i>, and <i>Eriogonum microthecum</i> may also be present. The sparse herbaceous layer has few graminoids, but <i>Poa secunda</i> is always present and <i>Elymus elymoides</i> is common. Forb cover is sparse in this plant community, but <i>Penstemon deustus, Potentilla glandulosa, Pteryxia terebinthina</i>, and <i>Packera cana</i> all occur with high constancy. This association, like all associations in ~Inter-Mountain Basins Volcanic Rock and Cinder Land (CES304.791)$$, is limited to barren and sparsely vegetated volcanic substrates of basalt and basaltic andesite origin, including tuffs, cinder cones, spatter cones, pressure plateaus, or cinder fields. It may occur in large-patch, small-patch or linear spatial patterns. 
Accession Code: urn:lsid:vegbank.org:commConcept:34361-{A725DC81-979F-4EC3-8A6B-2DA9C2788007}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 04-Apr-2017 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.948026 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL005611
  Translated: Antelope Bitterbrush - Lewis' Mock Orange / Sandberg Bluegrass Shrubland
  Scientific: Purshia tridentata - Philadelphus lewisii / Poa secunda Shrubland