The orchid Phragmipedium Scarlet O'Hara is a hybrid registered with the Royal Horticultural Society by H.P.Norton in 2000.
Top three species ancestors and their influences are

• Phragmipedium besseae (87.50%)  section: Micropetalum 
• Phragmipedium sargentianum (12.50%)  section: Platypetalum