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Chamaecyparis lawsoniana - Tsuga heterophylla / Gaultheria shallon - Rhododendron macrophyllum Forest | NatureServe Biotics 2019
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Name: Chamaecyparis lawsoniana - Tsuga heterophylla / Gaultheria shallon - Rhododendron macrophyllum Forest Reference: NatureServe Biotics 2019 Description: This conifer forest association is found on mesic sites between 450-700 m elevation on sedimentary substrates in southwestern Oregon. Substrates are derived from sedimentary parent materials. Canopy cover averages 84% and is dominated by <i>Chamaecyparis lawsoniana</i> and <i>Pseudotsuga menziesii</i> with a significant component of <i>Tsuga heterophylla</i>. These trees are the only ones that occur with consistency in this association. Occasional individuals of <i>Abies grandis</i> are also present. Immature conifer cover averages 33%, while seedlings and saplings have the lowest density of any <i>Chamaecyparis lawsoniana</i> association. The shrub layer is very well-developed with 93% cover with <i>Gaultheria shallon</i> and <i>Rhododendron macrophyllum</i> dominating. Other shrubs which show maximal development are <i>Mahonia nervosa, Vaccinium ovatum, Mahonia aquifolium, Corylus cornuta</i>, and <i>Acer circinatum</i>. The herbaceous layer is poorly developed, though <i>Polystichum munitum</i> does maintain fairly high cover values.  Accession Code: urn:lsid:vegbank.org:commConcept:28954-{D943240C-8D85-4023-A2FD-BC62F6EFF5C5} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 30-Nov-1993 to: ongoing
	status: accepted Community's Parent: Chamaecyparis lawsoniana Forest Alliance This Community's Level: Association This Community's Children: [none]		Names:   UID: ELEMENT_GLOBAL.2.683385 NatureServe Explorer   Code: CEGL000045   Translated: Port Orford-cedar - Western Hemlock / Salal - Pacific Rhododendron Forest   Scientific: Chamaecyparis lawsoniana - Tsuga heterophylla / Gaultheria shallon - Rhododendron macrophyllum Forest (convergence) and Synonyms: (similar) CEGL000045 (similar) Chamaecyparis lawsoniana - Tsuga heterophylla / Gaultheria shallon - Rhododendron macrophyllum Forest (similar) Chamaecyparis lawsoniana - Tsuga heterophylla / Gaultheria shallon - Rhododendron macrophyllum Forest