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Abies lasiocarpa / Valeriana sitchensis Forest | Western Ecology Working Group of...
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Name: Abies lasiocarpa / Valeriana sitchensis Forest Reference: Western Ecology Working Group of... Description: This association occurs only in the Cascade Range and Olympic Mountains of Washington at elevations of 1400-2000 m. It is most common in relatively dry climatic zones for western Washington, and especially in the rainshadow of major volcanoes. Sites have well-drained soils and southern aspects. This is a needle-leaved evergreen conifer forest or woodland of relatively short stature. Abies lasiocarpa is always dominant (mean cover 65%). Small amounts of Tsuga mertensiana or Abies amabilis may sometimes occur in the tree regeneration layer. The relatively lush herbaceous understory is dominated by the forb Valeriana sitchensis and typically also the graminoid Luzula glabrata var. hitchcockii. The dwarf-shrub Vaccinium deliciosum is usually also present (mean cover 10%). Other frequent understory species that occur in low abundance are Arnica latifolia, Rubus lasiococcus, Veratrum viride, Viola orbiculata, Polygonum bistortoides, Lupinus arcticus ssp. subalpinus, Polemonium pulcherrimum, Pedicularis racemosa, and Ligusticum grayi. This association is distinguished from similar associations by >3% cover of Valeriana sitchensis and the presence of Vaccinium deliciosum, along with little to no Abies amabilis, Tsuga heterophylla, Tsuga mertensiana, Rhododendron albiflorum (<10%), Vaccinium membranaceum (<5%), Vaccinium scoparium, or Phyllodoce empetriformis.  Accession Code: VB.CC.26156.ABIESLASIOCARPA Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 26-Nov-1997 to: 17-Nov-2014
	status: accepted Community's Parent: Abies lasiocarpa - Picea engelmannii Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   Translated: Subalpine Fir / Sitka Valerian Forest   UID: ELEMENT_GLOBAL.2.689236 NatureServe Explorer   Code: CEGL000345   Scientific: Abies lasiocarpa / Valeriana sitchensis Forest (convergence) and Synonyms: (undetermined) Abies lasiocarpa / Valeriana sitchensis Forest