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Alnus rubra - Acer macrophyllum - Pseudotsuga menziesii Forest Alliance | NatureServe Biotics 2019
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Name: Alnus rubra - Acer macrophyllum - Pseudotsuga menziesii Forest Alliance Reference: NatureServe Biotics 2019 Description: This forest alliance consists of forests where <i>Acer macrophyllum</i> and/or <i>Alnus rubra</i> are dominant with at least half as much cover by conifer species such as <i>Abies grandis, Picea sitchensis, Pseudotsuga menziesii</i>, or <i>Tsuga heterophylla</i> emergent through the deciduous layer. The forest understory is usually species-rich and well-developed. Common shrub species include <i>Acer circinatum, Corylus cornuta var. californica, Menziesia ferruginea, Rhododendron macrophyllum, Rubus spectabilis, Sambucus racemosa var. melanocarpa, Symphoricarpos albus</i>, and <i>Vaccinium parvifolium</i>. The herbaceous layer is usually well-developed and can be very diverse, with <i>Asarum caudatum, Hydrophyllum tenuipes, Oxalis oregana, Polystichum munitum</i>, and <i>Trillium ovatum</i> particularly common. It occurs along the Pacific Coast and in coastal valleys from northern British Columbia to northern California (where it would be restricted to the immediate coastal areas). This maritime-influenced region has mild winter temperatures and receives 75-400 cm of annual precipitation, falling mostly as winter rain. Vegetation usually occurs along low-elevation (0-1000 m) valley bottoms and adjacent lower toeslopes, often forming a seral community in moist coniferous forests.  Accession Code: urn:lsid:vegbank.org:commConcept:38062-{1391433C-3F8B-4994-9CBD-D5D818F863F7} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 18-Dec-2014 to: ongoing
	status: accepted Community's Parent: Alnus rubra - Acer macrophyllum Rainforest Group This Community's Level: Alliance This Community's Children: Show/Hide   Abies grandis - Acer macrophyllum / Symphoricarpos albus Forest   Acer macrophyllum - Pseudotsuga menziesii / Acer circinatum / Polystichum munitum Forest   Acer macrophyllum - Pseudotsuga menziesii / Corylus cornuta / Hydrophyllum tenuipes Forest		Names:   UID: ELEMENT_GLOBAL.2.898992 NatureServe Explorer   Code: A0427   Translated: Red Alder - Bigleaf Maple - Douglas-fir Forest Alliance   Common: Red Alder - Bigleaf Maple - Douglas-fir Forest   Scientific: Alnus rubra - Acer macrophyllum - Pseudotsuga menziesii Forest Alliance