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Abies lasiocarpa / Rhododendron albiflorum / Senecio triangularis Woodland | NatureServe Biotics 2019
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Name: Abies lasiocarpa / Rhododendron albiflorum / Senecio triangularis Woodland
Reference: NatureServe Biotics 2019
Description: This riparian association is endemic to the Okanogan Highlands of Washington from Pend Oreille River to the Sinlahekin drainage in the eastern Cascades. It is likely in adjacent British Columbia. This association appears in valley bottoms on sites that occasionally flood, are seasonally saturated, and where the water table lowers to two or more feet below the soil surface. It typically has an open canopy of <i>Abies lasiocarpa</i> and <i>Picea engelmannii</i> trees. <i>Tsuga heterophylla</i> may be a member of the canopy. Early seral tree species are rare. The subcanopy and tree seedling layer always contains <i>Abies lasiocarpa</i> and often contains <i>Picea engelmannii</i>. The undergrowth layer is dominated by a 1-m or taller deciduous shrub layer composed of a mixture of <i>Rhododendron albiflorum</i> and/or <i>Menziesia ferruginea</i> often with <i>Vaccinium membranaceum</i>. The trailing woody vine <i>Rubus pedatus</i> is frequently a part of the ground cover. <i>Senecio triangularis</i> is always present although usually not abundant. Other frequently occurring forbs are <i>Mitella pentandra, Tiarella trifoliata var. unifoliata, Trautvetteria caroliniensis</i>, and <i>Athyrium filix-femina</i>. Ground cover is sometimes dominated by the fern <i>Gymnocarpium dryopteris</i>. Moss cover commonly contributes to ground cover. 
Accession Code: urn:lsid:vegbank.org:commConcept:31521-{2BA31763-2AFF-4B7C-8C93-BEAE6D456809}
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 26-Nov-1997 to: ongoing
      Names:   UID: ELEMENT_GLOBAL.2.688378 NatureServe ExplorerNatureServe Explorer logo
  Code: CEGL002613
  Translated: Subalpine Fir / Cascade Azalea / Arrowleaf Ragwort Woodland
  Scientific: Abies lasiocarpa / Rhododendron albiflorum / Senecio triangularis Woodland
(convergence) and Synonyms:
(similar) Abies lasiocarpa / Rhododendron albiflorum / Senecio triangularis Woodland
(similar) CEGL002613
(similar) Abies lasiocarpa / Rhododendron albiflorum / Senecio triangularis Woodland