The orchid Aranda Wong Bee Yeok is a hybrid registered with the Royal Horticultural Society by Mak Chin On in 1975. It is originated by S.Y.Alsagoff
Top three species ancestors and their influences are

• Vanda coerulea (37.50%)  section: Longicalcarata 
• Vanda sanderiana (34.38%)  section: Roeblingiana 
• Arachnis hookeriana (18.75%)