The orchid Vanda Wilas is a hybrid registered with the Royal Horticultural Society by W.Charoen in 1968.
Top three species ancestors and their influences are

• Vanda curvifolia (50.00%)  section: Ascocentrum 
• Vanda sanderiana (34.38%)  section: Roeblingiana 
• Vanda coerulea (12.50%)  section: Longicalcarata