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Populus angustifolia - Pseudotsuga menziesii Riparian Woodland | NatureServe Biotics 2019
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Name: Populus angustifolia - Pseudotsuga menziesii Riparian Woodland Reference: NatureServe Biotics 2019 Description: The riparian woodland association is found along small active streams in rocky, cool canyons and valleys between 2000-2700 m in Colorado, Utah, and Nevada. It occurs naturally in small stands on wash bottoms, streambanks, cobble bars and terraces where a northern or protected aspect creates cool micro-environments. A mix of <i>Pseudotsuga menziesii</i> (10-40% cover) and <i>Populus angustifolia</i> (10-60% cover) in the upper canopy is diagnostic, though they may be joined by other conifer species. Shrub cover is typically low, but highly variable and diverse, and may include <i>Acer glabrum, Salix exigua, Alnus incana, Betula occidentalis, Salix lucida ssp. caudata, Clematis ligusticifolia, Ribes cereum</i>, and <i>Quercus gambelii</i>. Herbaceous cover can be sparse and usually limited by heavy shade. This association represents a transition from lower montane to upper montane habitats. Nearly all stands observed have an adjacent north-facing slope with <i>Pseudotsuga menziesii</i> forests. These woodland are dependent upon flooding disturbance for regeneration of <i>Populus angustifolia</i>.  Accession Code: urn:lsid:vegbank.org:commConcept:31549-{CD75F588-6CCF-41AC-9237-6496ADA37F37} Plot-observations of this Community Concept: 9
	Party Perspective according to: NatureServe (organization) Perspective from: 09-Apr-1998 to: ongoing
	status: accepted Community's Parent: Populus angustifolia Riparian Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.687195 NatureServe Explorer   Code: CEGL002641   Translated: Narrowleaf Cottonwood - Douglas-fir Riparian Woodland   Scientific: Populus angustifolia - Pseudotsuga menziesii Riparian Woodland (convergence) and Synonyms: (similar) CEGL002641 (similar) Populus angustifolia - Pseudotsuga menziesii Woodland (similar) Populus angustifolia - Pseudotsuga menziesii Woodland