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Chamaecyparis lawsoniana - Tsuga heterophylla / Polystichum munitum Forest | Western Ecology Working Group of...
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Name: Chamaecyparis lawsoniana - Tsuga heterophylla / Polystichum munitum Forest
Reference: Western Ecology Working Group of...
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>Lithocarpus 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 (= var. nervosa)</i> are common in the low-shrub stratum, while <i>Lithocarpus 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: VB.CC.33988.CEGL000046
Plot-observations of this Community Concept: 0
      Party Perspective according to: NatureServe (organization)
Perspective from: 17-Nov-2014 to: 01-May-2019
     
  • status: accepted
  • This Community's Level: association
  • This Community's Children: [none]
Names:   Code: CEGL000046
  UID: ELEMENT_GLOBAL.2.689308 NatureServe ExplorerNatureServe Explorer logo
  Translated: Port Orford-cedar - Western Hemlock / Western Swordfern Forest
  Scientific: Chamaecyparis lawsoniana - Tsuga heterophylla / Polystichum munitum Forest