Cypripedium parviflorum var. pubescens

While in Edmonton visiting family last summer I went on an orchid-hunting excursion with a friend to several locations in that part of the country. At one of them we saw thousands of these Lady's Slippers blooming, most of them very richly colored. This is the Large Yellow Lady's Slipper which is often paler than the Northern Small Yellow Lady's Slipper.

An added note: we are back from our fossil-hunting trip and found hundreds of beautiful fossils including whole Palm fronds and parts of Palm trunks, other leaves, ferns and conifer twigs. The area we were in was opened up by a massive landslide some years ago uncovering fossils in the Cretaceous shale and the Chuckanut Sandstone formations.