Paphiopedilum or Paph orchid is commonly known as lady's slipper. Paphiopedilum orchids are found mostly in the Southeast Asia. There are many Paphiopedilum species that are native to Vietnam. Vietnam has about 20 species of lady's slipper orchids, many of them are diminishing due to poaching.
These are pictures of lady's slipper orchids (Paphiopedilum) from "Hoa Lan Sang Còi" nursery and other orchid shops in Dalat, Vietnam.