lady-slippers-orchid Yellow and purple lady slippers are the rare members of the orchid family, located mainly in London. The combination of yellow and purple lady slippers is very rare. Almost 3/4th of total flower is yellow lady slipper and the remaining part is in purple color. The rare yellow and purple lady slippers is also one of the expensive flowers in the world. That’s why the yellow and purple lady slipper is protected by law in London.