Camas Swale Research Natural Area

This guidebook describes Camas Swale Research Natural Area, a 127-ha (314-ac) area that supports dry site, old-growth Douglas-fir (Pseudotsuga menziesii) forest. Major plant associations present within the area include the Douglas-fir/salal/ western swordfern (Pseudotsuga menziesii/Gaultheria shallon/Polystichum munitum) plant association, Douglas-fir/Oregongrape (Pseudotsuga menziesii/ Berberis nervosa) plant association, Douglas-fir/poison oak (Pseudotsuga menziesii/ Toxicodendron diversilobum) plant association, and Douglas-fir/hazelnut-trailing snowberry/western swordfern (Pseudotsuga menziesii/Corylus cornuta var. californica-Symphoricarpos mollis/Polystichum munitum) plant association. Keywords: Research natural area, Area of Critical Environmental Concern, old-growth Douglas-fir (Pseudotsuga menziesii), Douglas-fir/salal/western swordfern (Pseudotsuga menziesii/Gaultheria shallon/Polystichum munitum) plant association, Douglas-fir/Oregongrape (Pseudotsuga menziesii/Berberis nervosa) plant association, Douglas-fir/poison oak (Pseudotsuga menziesii/ Toxicodendron diversilobum) plant association, and Douglas-fir/hazelnut- trailing snowberry/ western swordfern (Pseudotsuga menziesii/Corylus cornuta var. californica- Symphoricarpos mollis/Polystichum munitum) plant association.