The orchid Vanda Amphai is a hybrid registered with the Royal Horticultural Society by A.Sathirasut in 1973. It is originated by Soonthonwana
Top three species ancestors and their influences are

• Vanda sanderiana (71.88%)  section: Roeblingiana 
• Vanda coerulea (15.63%)  section: Longicalcarata 
• Vanda dearei (10.94%)  section: Deltoglossa