The orchid Phragmipedium Appalachian Sunset is a hybrid registered with the Royal Horticultural Society by Woodstream in 1998.
Top three species ancestors and their influences are

• Phragmipedium caricinum (50.00%)  section: Himantopetalum 
• Phragmipedium besseae (25.00%)  section: Micropetalum 
• Phragmipedium longifolium (25.00%)  section: Lorifolia