Login | Datasets | Logout
Jump to... Home PLOT search PLANT search COMMUNITY search Simple search Manage datasets Tutorial About FAQ ------- Site map VegBranch Data dictionary ERD

stdcommconcept3166731667

View Community Concepts - Detail

Pinus edulis - Juniperus osteosperma / Atriplex spp. Woodland | Western Ecology Working Group of...
click to update datacart
Name: Pinus edulis - Juniperus osteosperma / Atriplex spp. Woodland Reference: Western Ecology Working Group of... Description: This woodland association is described from Capitol Reef and Canyonlands national parks in southern Utah and Black Canyon of the Gunnison National Park in western Colorado; it likely occurs elsewhere in the Colorado Plateau. These higher elevation pinyon-juniper stands occur on shale- and sandstone-derived soils at 1583-2083 m. Sites are gentle to steep (3- to 88-degree slopes) and occur on plateau slopes, washes, valley sides, midslopes of hills, and on ridgetops and hogbacks. Substrates are variable and include silty or sandy soils derived from sandstones and shale, rapidly drained gravelly/rocky soils, and soils derived from eroded, highly dissected gypsum parent material with poor infiltration/rapid runoff. The unvegetated ground surface has high cover of biotic crust, bare ground, or sometimes a layer of surface rock and gravel. The vegetation is characterized by an open to moderate (15-25% cover) tree canopy 2-5 m tall that is dominated by <i>Pinus edulis</i> and <i>Juniperus osteosperma</i> trees, with an open to moderately dense short-shrub layer dominated by <i>Atriplex confertifolia</i> or <i>Atriplex canescens</i>. Other short and dwarf-shrubs present may include <i>Artemisia tridentata ssp. wyomingensis, Atriplex cuneata, Chrysothamnus viscidiflorus, Ephedra torreyana, Ephedra viridis, Gutierrezia sarothrae, Krascheninnikovia lanata, Mahonia fremontii</i>, and the cactus <i>Opuntia polyacantha</i>. The open to sparse (<15% cover) herbaceous layer is primarily composed of graminoids such as <i>Achnatherum hymenoides, Leymus salinus (= Elymus salinus), Pleuraphis jamesii, Poa secunda</i>, and <i>Sporobolus flexuosus</i>. Forbs such as <i>Eriogonum inflatum</i> typically provide less than 1% total cover. The introduced annual species <i>Bromus tectorum</i> and <i>Erodium cicutarium</i> are often abundant. <i>Atriplex canescens</i> and <i>Artemisia tridentata ssp. wyomingensis</i> are restricted to the stand with non-gypsum parent material. Cryptogams provide up to 27% cover.  Accession Code: VB.CC.31667.CEGL002366 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.2.769194 NatureServe Explorer   Translated: Two-needle Pinyon - Utah Juniper / Saltbush species Woodland   Scientific: Pinus edulis - Juniperus osteosperma / Atriplex spp. Woodland   Code: CEGL002366