The orchid Paphiopedilum Sierra Bell-bellatulum is a hybrid . This orchid hybrid lacks official registration. The name is an internal designation created within the orchidroots system.
Top three species ancestors and their influences are

• Paphiopedilum bellatulum (78.13%)  subgenus Brachypetalum
• Paphiopedilum godefroyae (12.50%)  subgenus Brachypetalum
• Paphiopedilum niveum (9.38%)  subgenus Brachypetalum