Yellow Lady's-slipper

I photographed this Large Yellow Lady's-slipper yesterday at Bowman's Hill Wildflower Preserve in Pennsylvania. Most of the ladyslippers had bloomed a week or two before and are now wilted, and this is the last one remaining in bloom.

Lady's-slippers are popular with collectors, and as a result they are threatened or vulnerable throughout their range in North America. The best chance to see one is a place where flowers are protected like a wildflower preserve or an arboretum.