The orchid Paphiopedilum Hatsue Otsuka is a hybrid registered with the Royal Horticultural Society by Masahiro Saito in 2003.
Top three species ancestors and their influences are

• Paphiopedilum rothschildianum (50.00%)  subgenus Polyantha  section: Mastigopetalum 
• Paphiopedilum primulinum (25.00%)  subgenus Cochlopetalum
• Paphiopedilum armeniacum (25.00%)  subgenus Parvisepalum