The orchid Paphiopedilum gratrixianum-Winstear 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 gratrixianum (50.00%)  subgenus Paphiopedilum  section: Paphiopedilum 
• Paphiopedilum insigne (17.38%)  subgenus Paphiopedilum  section: Paphiopedilum 
• Paphiopedilum villosum var. boxallii (12.89%)  subgenus Paphiopedilum  section: Paphiopedilum