The orchid Cattlianthe Mary Cash's Exquisite is a hybrid registered with the Royal Horticultural Society by Cash in 2023. It is originated by F.Clarke
Top three species ancestors and their influences are

• Cattleya lawrenceana (50.00%)  subgenus Cattleya  section: Cattleya   series: Lawrenceanae 
• Guarianthe aurantiaca (50.00%)  subgenus Circumvola  section: Aurantiacae