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Pinus flexilis / Chamaebatiaria millefolium / Poa secunda Open Woodland | NatureServe Biotics 2019
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Name: Pinus flexilis / Chamaebatiaria millefolium / Poa secunda Open Woodland Reference: NatureServe Biotics 2019 Description: The vegetation of this association of the intermountain western U.S. is characterized by sparse total cover, less than 10%. <i>Pinus flexilis</i> individuals are scattered throughout this vegetation type, but do not occur with high enough abundance to form a tree canopy. The shrub stratum is dominated by <i>Artemisia tridentata ssp. vaseyana, Chamaebatiaria millefolium</i>, and <i>Philadelphus lewisii</i>. <i>Chamaebatiaria millefolium</i> occurs with sparse cover, but is a characteristic species of this association. Other, less frequently occurring, shrubs may include <i>Holodiscus dumosus</i> and <i>Purshia tridentata</i>. The minimal herbaceous layer includes the graminoids <i>Poa secunda</i> and <i>Pseudoroegneria spicata</i>. Forbs cover is also low but highly variable in terms of species composition, and may include species such as <i>Crepis acuminata, Dryopteris filix-mas, Aliciella leptomeria, Linanthus pungens, Lithophragma tenellum, Pteryxia terebinthina</i>, and <i>Viola nuttallii</i>. 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. Soil is more available for vegetation establishment in this plant community than on other cinder land plant communities, as evidenced by higher average graminoid cover.  Accession Code: urn:lsid:vegbank.org:commConcept:34353-{B73ACAEA-1129-4D16-926E-48354B9367F3} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 04-Apr-2017 to: ongoing
	status: accepted Community's Parent: Pinus flexilis / Shrub Understory Central Rocky Mountain Woodland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.947986 NatureServe Explorer   Code: CEGL005603   Translated: Limber Pine / Desert-sweet / Sandberg Bluegrass Open Woodland   Scientific: Pinus flexilis / Chamaebatiaria millefolium / Poa secunda Open Woodland