The orchid Vanda Medasand is a hybrid registered with the Royal Horticultural Society by Masao Yamada in 1967.
Top three species ancestors and their influences are

• Vanda sanderiana (62.50%)  section: Roeblingiana 
• Vanda curvifolia (25.00%)  section: Ascocentrum 
• Vanda coerulea (12.50%)  section: Longicalcarata