Usually, I have seen these in the deep woods. I found these along the trail in Fort Worden State Park in Port Townsend.
These ghost flowers were growing alongside the N Fork Quinault Trail in the Olympic National Park. They are non-chlorophyl plants using decaying plant material for their food supply.
I was carrying a point-and-shoot (to minimize my pack weight) and the forest canopy was dense enough that I had to use flash to take the image. (not my favorite solution)
Camera: Canon Powershot S400 Focal length: 22.2mm 1/60 sec f/4.9 with flash