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Alnus viridis - Rubus spectabilis - Salix alaxensis Vancouverian Shrubland Group | NatureServe Biotics 2019
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Name: Alnus viridis - Rubus spectabilis - Salix alaxensis Vancouverian Shrubland Group
Reference: NatureServe Biotics 2019
Description: This is a shrubland group, ranging from low elevations in the Aleutian Islands to subalpine or low alpine in some portions of southeastern Alaska. Dominant and characteristic shrub species include <i>Alnus viridis, Rubus spectabilis, Salix alaxensis, Salix barclayi, Salix glauca</i>, and <i>Vaccinium ovalifolium</i>. Other shrubs may include <i>Sambucus racemosa, Spiraea stevenii</i>, and <i>Oplopanax horridus</i>. Total low- and tall-shrub canopy cover is generally greater than 25%. Sites codominated by tall willows typically occur along streams and at the upper limits of alder growth. The most common herbaceous species include <i>Calamagrostis canadensis</i> and <i>Chamerion angustifolium</i>, but there are many others. This group occurs on flat to steep slopes (0-50°) at low to mid elevations (1-1000 m) in valleys, hills and mountains of the Aleutians; in southeastern Alaska it occurs on mountain sideslopes from sea level to treeline where slopes are steep enough to produce frequent snowslides preventing forest development. It is also found throughout the maritime region of Alaska and British Columbia, near treeline. Soils are typically mesic, well-drained, shallow, and stony, can be ash-covered, and underlain by colluvium, glacial drift or till or residuum. Precipitation is abundant, and these shrublands are mesic to wet. Tree seedlings and saplings may be abundant on some slopes but do not emerge as an overstory due to frequent disturbance. 
Accession Code: urn:lsid:vegbank.org:commConcept:40094-{437D83FB-F427-4428-A4D9-678D73E6A8D6}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 09-Nov-2015 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.860743 NatureServe ExplorerNatureServe Explorer logo
  Code: G354
  Scientific: Alnus viridis - Rubus spectabilis - Salix alaxensis Vancouverian Shrubland Group