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Chamaecyparis lawsoniana - Tsuga heterophylla / Polystichum munitum Forest | NatureServe Biotics 2019
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Name: Chamaecyparis lawsoniana - Tsuga heterophylla / Polystichum munitum Forest Reference: NatureServe Biotics 2019 Description: This giant conifer association grows on mesic sites between 300-800 m elevation in southwestern Oregon and northwestern California. Stands are found on moist benches and well-watered slopes up to 35%. Soils are well developed, gravelly silt loams of comparative depth. The tree canopy is dominated by <i>Pseudotsuga menziesii, Chamaecyparis lawsoniana</i> and <i>Tsuga heterophylla</i>. <i>Abies grandis, Alnus rubra, Acer macrophyllum</i>, and <i>Notholithocarpus densiflorus</i> are common associates. The vigorous immature conifer layer averages 47% cover and is dominated by <i>Tsuga heterophylla</i>. The shrub stratum is poorly developed, attaining an average of only 9% cover. <i>Gaultheria shallon</i> and <i>Mahonia nervosa)</i> are common in the low-shrub stratum, while <i>Notholithocarpus densiflorus</i> dominates the tall-shrub layer. The dense herbaceous layer is dominated by <i>Polystichum munitum</i> and <i>Oxalis oregana</i> which make up 80% of the herbaceous cover. Moss cover averages 39%. The high cover of the herbaceous layer (63%), with dominance by <i>Polystichum munitum</i> and <i>Oxalis oregana</i> differentiate this community from other <i>Chamaecyparis lawsoniana</i> forest associations.  Accession Code: urn:lsid:vegbank.org:commConcept:28955-{E2921173-2AB0-4895-A7B4-870E08C32E3F} Plot-observations of this Community Concept: 0
	Party Perspective according to: NatureServe (organization) Perspective from: 03-Dec-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.2.689308 NatureServe Explorer   Code: CEGL000046   Translated: Port Orford-cedar - Western Hemlock / Western Swordfern Forest   Scientific: Chamaecyparis lawsoniana - Tsuga heterophylla / Polystichum munitum Forest (convergence) and Synonyms: (similar) Chamaecyparis lawsoniana - Tsuga heterophylla / Polystichum munitum Forest (similar) CEGL000046 (similar) Chamaecyparis lawsoniana - Tsuga heterophylla / Polystichum munitum Forest