Gold Thread.  This is a rare native to WA but more common in BC and AK.  Great evergreen groundcover for moist shade with glossy parsley leaves and golden thin rhizomes hence the common name.  Dye plant and most likely medicinal.  This spreads well in loose moist soil.

Our native creeping dogwood from seed collected during one of our many hikes in the Olympic Mountains.  This deciduous groundcover is such a good plant with obvious white dogwood flowers on 4"-6" stems followed by clusters of red fruit.  We like it when it climbs a bit up mossy trunks and logs.  Loose soil with a good organic content.