The orchid Vanda Blue Tahourdin is a hybrid registered with the Royal Horticultural Society by Motes in 2003.
Top three species ancestors and their influences are

• Vanda tessellata (75.00%)  section: Vanda 
• Vanda sanderiana (12.50%)  section: Roeblingiana 
• Vanda curvifolia (12.50%)  section: Ascocentrum