The orchid Disa Santa-Rosa is a hybrid registered with the Royal Horticultural Society by S.& M.Cywes in 1993.
Top three species ancestors and their influences are

• Disa racemosa (50.00%)  section: Disa 
• Disa tripetaloides (25.00%)  section: Disa 
• Disa uniflora (25.00%)  section: Disa