The orchid Paphiopedilum Bouton D'Or is a hybrid registered with the Royal Horticultural Society by Marcel Lecoufle in 1981.
Top three species ancestors and their influences are

• Paphiopedilum insigne (50.00%)  subgenus Paphiopedilum  section: Paphiopedilum 
• Paphiopedilum spicerianum (18.95%)
• Paphiopedilum villosum (12.50%)  subgenus Paphiopedilum  section: Paphiopedilum