More often than not one finds Fairy Slippers as single flowers and so finding a nice clump of them is always a bonus. These were photographed in the area of Leavenworth, Washington, on an orchid-hunting trip there..
They are the Western Fairy Slipper, Calypso bulbosa var. occidentalis found only in the far western USA and Canada. There are three other varieties, however, one native to Eurasia, another to Japan and a third to the northern USA and Canada.

ronaldhanko-orchidhunter.blogspot.com/2013/05/orchid-hunting-in-leavenworth-area.html