The orchid Aranda Sayan is a hybrid registered with the Royal Horticultural Society by C.Sombuntham in 1974.
Top three species ancestors and their influences are

• Arachnis hookeriana (50.00%)
• Vanda sanderiana (31.25%)  section: Roeblingiana 
• Vanda curvifolia (12.50%)  section: Ascocentrum