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Alnus incana - Salix drummondiana Shrubland | Western Ecology Working Group of...
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Name: Alnus incana - Salix drummondiana Shrubland
Reference: Western Ecology Working Group of...
Description: This riparian shrubland association is common in mountains of Colorado and likely occurs in adjacent New Mexico and possibly southern Wyoming. Stands are generally found along steep-gradient streams between 2200-3000 m elevation. It is an early- to mid-seral community restricted to stream margins, alluvial surfaces, and coarse-textured cobble bars, rarely forming large or extensive stands. The vegetation is characterized by a dense, closed, tall-shrub canopy of 10-100% cover of Alnus incana ssp. tenuifolia and 10-60% cover of Salix drummondiana. Other shrubs occurring with greater than 25% frequency include Salix monticola, Lonicera involucrata, Ribes inerme, Cornus sericea, Rosa woodsii, and Amelanchier utahensis. Tree cover ranges from 0-20% dominated by Picea pungens (0-10%) and Picea engelmannii (0-23%). In some stands, heavy shading and recent flood scouring limit herbaceous growth (<10%). Other stands have a rich herbaceous understory that includes Heracleum maximum, Equisetum pratense, Rudbeckia laciniata, and Angelica ampla. Diagnostic of this shrubland association is the codominance of Alnus incana ssp. tenuifolia and Salix drummondiana on sites that are flooded for brief periods during the growing season. 
Accession Code: VB.CC.21318.ALNUSINCANASALI
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 09-Apr-1998 to: 17-Nov-2014
      Names:   Translated: Speckled Alder - Drummond's Willow Shrubland
  UID: ELEMENT_GLOBAL.2.685055 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL002652
  Scientific: Alnus incana - Salix drummondiana Shrubland
(convergence) and Synonyms:
(undetermined) Alnus incana - Salix drummondiana Shrubland