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Populus deltoides ssp. wislizeni / Rhus trilobata Riparian Woodland | NatureServe Biotics 2019
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Name: Populus deltoides ssp. wislizeni / Rhus trilobata Riparian Woodland Reference: NatureServe Biotics 2019 Description: This woodland association is documented from the Colorado, Yampa and San Miguel/Dolores river basins in western Colorado and northeastern Utah below 1680 m (5500 feet) in elevation. An ecologically similar association with a different subspecies of cottonwood, <i>Populus deltoides ssp. monilifera</i>, is known from southeastern Colorado. Both of these associations represent a late-seral stage of maturing cottonwoods. The trees are usually large and widely spaced with thick patches of <i>Rhus trilobata</i> in between and underneath the overstory canopy. <i>Populus deltoides ssp. wislizeni</i> with a <i>Rhus trilobata</i> understory form this late-seral plant association. <i>Populus angustifolia</i> becomes an important overstory component at higher elevations in the Colorado River basin. Other shrubs commonly present are <i>Artemisia tridentata ssp. tridentata, Cornus sericea, Chrysothamnus linifolius, Symphoricarpos</i> spp., <i>Shepherdia argentea, Tamarix ramosissima</i> (an exotic), and <i>Salix exigua</i>. The forb understory is usually sparse and consists mainly of <i>Cirsium arvense</i> (an exotic), <i>Asclepias speciosa</i>, and <i>Melilotus officinalis</i> (another exotic). Graminoid cover ranges from 10-30% and consists mostly of introduced species such as <i>Poa pratensis, Bromus inermis</i>, and <i>Elymus repens</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:29849-{59BBCF9D-66D3-4680-8C9E-1E966C799EE0} Plot-observations of this Community Concept: 10
	Party Perspective according to: NatureServe (organization) Perspective from: 07-Sep-2005 to: ongoing
	status: accepted Community's Parent: Populus deltoides ssp. wislizeni - Populus deltoides ssp. monilifera - Salix amygdaloides Riparian Woodland Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.684223 NatureServe Explorer   Code: CEGL000940   Translated: Rio Grande Cottonwood / Skunkbush Sumac Riparian Woodland   Scientific: Populus deltoides ssp. wislizeni / Rhus trilobata Riparian Woodland (convergence) and Synonyms: (similar) CEGL000940 (similar) Populus deltoides ssp. wislizeni / Rhus trilobata Woodland (similar) Populus deltoides ssp. wislizeni / Rhus trilobata Woodland