The orchid Papilionanda Walter Oumae is a hybrid registered with the Royal Horticultural Society by W.Oumae in 1956.
Top three species ancestors and their influences are

• Vanda sanderiana (75.00%)  section: Roeblingiana 
• Papilionanthe teres (12.50%)
• Papilionanthe hookeriana (12.50%)