Red Elderberry is very abundant in the moist woods of the PNW. There are two varieties of native elderberry to the PNW,  red elderberry and blue elderberry. The red is much more common on the west side of the cascades. Red Elderberry produces a very bright red cluster of berries that are best left for the birds or squirrels. This shrub can tolerate sun or shade, but has a tendancy tall in the shade, making it a graceful addition to a woodland garden.