yellow lady's slipper

noun3

1. •
   Cypripedium parviflorum, a type of lady's slipper orchid native to North America.
2. •
   Cypripedium calceolus, a type of lady's slipper orchid native to Eurasia.
3. •
   Cypripedium flavum, a type of lady's slipper orchid native to China.