The Lady’s slippers are a most beautiful and unique wildflower. Pennsylvania has three species and I believe all are endangered in many areas. This specie of flower has growth and survival demands seldom duplicated by home flower gardens. Therefore they should NEVER BE TRANSPLANTED! They take a very long time to regenerate even in their element. If one discovers their growth in a woodlot enjoy their beauty only.
The specie of Lady’s Slipper in my area of Pennsylvania is the Pink lady’s Slipper. Another name for this flower is Moccasin-Flower. This plant requires very acid soil or bogs to survive. I know of a few local sites. The site where I took these photos was discovered by myself some thirty years ago. The area was around a half acre in size. This recent trip to relocate and photograph these flowers remained approximately the same size of half and acre to maybe three-fourth of an acre. Like I said, DO NOT REMOVE!
The Yellow Lady’s Slipper is found in bog areas and mossy swamps. I have, yet, to find any locally. There are a few sites in western Pennsylvania. There are two 
sub-species in the Yellow lady’s Slipper.
The Showy Lady’s Slipper is found in northwestern Pennsylvania in acid bog sites. This special is white with pink.
I took some photos of Canada mayflowers and Fire-Pinks as I searched this evening for the Lady’s Slippers.
Canada Mayflower
Fire Pink
Larry A. Smail's Blog 
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