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Alnus viridis ssp. sinuata - Alnus viridis ssp. fruticosa - Acer circinatum Shrub Swamp Alliance | NatureServe Biotics 2019
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Name: Alnus viridis ssp. sinuata - Alnus viridis ssp. fruticosa - Acer circinatum Shrub Swamp Alliance Reference: NatureServe Biotics 2019 Description: A dense tall-shrub cover of <i>Alnus viridis ssp. sinuata</i> or <i>Alnus viridis ssp. fruticosa</i> or <i>Acer circinatum</i> characterizes this alliance. <i>Acer glabrum, Ribes lacustre</i>, and <i>Sorbus scopulina</i> may also be present. Low cold-deciduous or ericaceous shrubs may be abundant, including <i>Rubus spectabilis, Rubus parviflorus, Sambucus racemosa</i>, and <i>Vaccinium</i> spp. A lush herbaceous layer is usually present, including forbs such as <i>Aconitum columbianum, Achillea millefolium, Heracleum maximum, Osmorhiza berteroi, Senecio triangularis, Urtica dioica</i>, and <i>Veratrum viride</i>, large ferns, including <i>Athyrium filix-femina</i> and <i>Polystichum munitum</i>. These communities are located in the moderate- to high-elevation (1200-3000 m) riparian habitats of the Cascade and Coast ranges from British Columbia to northern California. They usually occur in somewhat steep drainages, which flood from spring snowmelt and winter rainstorms. The wet soils and frequent fluvial disturbance act to discourage colonization by coniferous trees and allow full sunlight to reach the ground at these sites. Soils are often composed of sorted gravels and sands on aggraded fluvial terraces.  Accession Code: urn:lsid:vegbank.org:commConcept:39045-{DEC3B755-E2AA-47E1-83D4-29D5E1616242} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 08-Jan-2014 to: ongoing
	status: accepted Community's Parent: Alnus spp. - Salix spp. - Spiraea spp. Wet Shrubland Group This Community's Level: Alliance This Community's Children: Show/Hide   Acer circinatum / Athyrium filix-femina - Tolmiea menziesii Shrub Swamp   Alnus viridis ssp. sinuata / Acer circinatum Shrub Swamp   Alnus viridis ssp. sinuata / Oplopanax horridus Shrub Swamp   Alnus viridis ssp. sinuata Shrub Swamp		Names:   UID: ELEMENT_GLOBAL.2.899885 NatureServe Explorer   Code: A3833   Translated: Sitka Alder - Siberian Alder - Vine Maple Shrub Swamp Alliance   Common: Pacific Green Alder - Vine Maple Shrub Swamp   Scientific: Alnus viridis ssp. sinuata - Alnus viridis ssp. fruticosa - Acer circinatum Shrub Swamp Alliance