The orchid Paphiopedilum Spring Sunset is a hybrid registered with the Royal Horticultural Society by Lehua in 2015.
Top three species ancestors and their influences are

• Paphiopedilum mastersianum (50.00%)  subgenus Sigmatopetalum  section: Blepharopetalum 
• Paphiopedilum sukhakulii (28.91%)  subgenus Sigmatopetalum  section: Planipetalum 
• Paphiopedilum callosum (8.79%)  subgenus Sigmatopetalum  subsection: Barbata