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Populus angustifolia / Salix exigua Riparian Woodland | NatureServe Biotics 2019
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Name: Populus angustifolia / Salix exigua Riparian Woodland
Reference: NatureServe Biotics 2019
Description: The type is widespread in mountainous regions of the San Juan, Pecos, and Rio Grande river basins in northern and central New Mexico and widely distributed throughout the Rocky Mountain region and Intermountain West. It is found in wide to narrow valleys at mid to upper elevations from 1670 to 2360 m (5480-7750 feet). It occurs on streamside alluvial bars that border perennial rivers and intermittent streams of low to moderate gradients (0.7-2.8%). In Colorado, this riparian woodland occupies point bars, gravel bars, benches and low areas that are flooded annually. It is a very common plant community of young seedling and sapling <i>Populus angustifolia</i> intermixed with <i>Salix exigua</i>. Sites are typically flooded every five years, sometime more often, and most are within the 25-year floodplain. Stream channel materials are usually coarse and composed of cobbles or gravel. Soils are young and weakly developed Entisols with wet (aquic) conditions within the top 50 cm or at least within rooting depth. They are well-drained sands and sandy loams mixed with gravels and cobbles. This type is characterized by middle-aged stands of <i>Populus angustifolia</i> in an open upper canopy, with a shrubby understory dominated by <i>Salix exigua</i>. <i>Populus angustifolia</i> saplings (derived from root sprouts) are common beneath the canopy. Other shrubs such as <i>Salix irrorata</i> may be well-represented but clearly subordinate to <i>Salix exigua</i>. The herbaceous layer is very diverse, with 98 species recorded for the type, 23 of which are native wetland indicators. 
Accession Code: urn:lsid:vegbank.org:commConcept:29563-{6D4BD76E-1BF4-45D9-9331-0F0FE2CFC8C2}
Plot-observations of this Community Concept: 20
      Party Perspective according to: NatureServe (organization)
Perspective from: 07-Sep-2005 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.689856 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL000654
  Translated: Narrowleaf Cottonwood / Narrowleaf Willow Riparian Woodland
  Scientific: Populus angustifolia / Salix exigua Riparian Woodland
(convergence) and Synonyms:
(similar) Populus angustifolia / Salix exigua Woodland
(similar) Populus angustifolia / Salix exigua Woodland
(similar) CEGL000654