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Populus deltoides ssp. wislizeni / Rhus trilobata Woodland | Western Ecology Working Group of...
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Name: Populus deltoides ssp. wislizeni / Rhus trilobata Woodland Reference: Western Ecology Working Group of... Description: This woodland association is documented from western Colorado in the Colorado, Yampa, and San Miguel/Dolores river basins below 5500 feet in elevation. An ecologically similar association with a different subspecies of cottonwood, Populus deltoides ssp. monilifera, 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 Rhus trilobata in between and underneath the overstory canopy. Populus deltoides ssp. wislizeni with a Rhus trilobata understory form this late-seral plant association. Populus angustifolia becomes an important overstory component at higher elevations in the Colorado River Basin. Other shrubs commonly present are Cornus sericea, Chrysothamnus linifolius, Symphoricarpos spp., Shepherdia argentea, Tamarix ramosissima (an exotic) and Salix exigua. The forb understory is usually sparse and consists mainly of Cirsium arvense (an exotic), Asclepias speciosa, and Melilotus officinalis (= Melilotus albus) (another exotic). Graminoid cover ranges from 10-30% and consists mostly of introduced species such as Poa pratensis, Bromus inermis and Elymus repens (= Elytrigia repens).  Accession Code: VB.CC.20058.POPULUSDELTOIDE Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Populus deltoides Temporarily Flooded Woodland Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Rio Grande Cottonwood / Squawbush Woodland   UID: ELEMENT_GLOBAL.2.684223 NatureServe Explorer   Code: CEGL000940   Scientific: Populus deltoides ssp. wislizeni / Rhus trilobata Woodland   Common: Rio Grande Cottonwood / Skunkbrush (convergence) and Synonyms: (undetermined) Populus deltoides ssp. wislizeni / Rhus trilobata Woodland