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Salix exigua Riparian Wet Shrubland | NatureServe Biotics 2019
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Name: Salix exigua Riparian Wet Shrubland
Reference: NatureServe Biotics 2019
Description: This willow shrubland is found throughout the western United States. This is a highly flood-tolerant community that occurs along rivers and streams at lower elevations, on recently flooded riparian areas, and in moist swales and ditches that are frequently disturbed. Stands occur most commonly on alluvial sand, but silt, clay or gravel may also be present. <i>Salix exigua</i> is the dominant canopy species (<i>Salix interior</i> or intermediates of the two willow species may be present in the eastern part of the range). It can form dense stands up to 4 m tall, but there are often patches where the shrub layer is absent. Seedlings and small saplings of <i>Populus deltoides, Populus balsamifera</i>, and <i>Salix amygdaloides</i> may be present. The herbaceous cover is sparse to moderate and rarely exceeds 30%. Species present may include <i>Cenchrus longispinus, Polygonum lapathifolium, Schoenoplectus americanus, Triglochin maritima</i>, and <i>Xanthium strumarium</i>.<br /><br />In California, the overstory shrub canopy is open to continuous and dominated by <i>Salix exigua</i>, with <i>Rubus armeniacus</i> often present. Trees such as <i>Ailanthus altissima, Fraxinus latifolia</i>, and <i>Salix laevigata</i> sometimes occur as scattered emergents. Other shrubs that may be present include <i>Rhus trilobata var. trilobata, Quercus gambelii, Rosa woodsii, Rosa nutkana, Ericameria nauseosa, Arctostaphylos patula</i>, and <i>Dasiphora fruticosa ssp. floribunda</i> The herbaceous layer is typically open and often includes <i>Artemisia douglasiana</i>. The composition of this community, especially the herbaceous layer, varies from year to year with succession or renewed disturbance. 
Accession Code: urn:lsid:vegbank.org:commConcept:30106-{5CC82C0F-23E7-4D96-8EA4-54653B1FD5D6}
Plot-observations of this Community Concept: 12
      Party Perspective according to: NatureServe (organization)
Perspective from: 09-Jan-2016 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.685547 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL001197
  Translated: Narrowleaf Willow Riparian Wet Shrubland
  Scientific: Salix exigua Riparian Wet Shrubland
(convergence) and Synonyms:
(similar) CEGL001197
(similar) Salix exigua Temporarily Flooded Shrubland
(similar) Salix exigua Temporarily Flooded Shrubland