The orchid Masdevallia O'Brien's Passion is a hybrid registered with the Royal Horticultural Society by L.O'Shaughnessy in 2006. It is originated by Orchid Zone
Top three species ancestors and their influences are

• Masdevallia coccinea (50.00%)
• Masdevallia veitchiana (31.25%)  subgenus Masdevallia  section: Masdevallia   subsection: Coccineae 
• Masdevallia triangularis (12.50%)  subgenus Masdevallia  section: Masdevallia   subsection: Caudatae