The orchid Brassocatanthe Hilltop Star is a hybrid registered with the Royal Horticultural Society by B.Thoms in 1992. It is originated by S.Isaac
Top three species ancestors and their influences are

• Brassavola nodosa (50.00%)
• Cattleya milleri (25.00%)  subgenus Parviflorae  section: Parviflorae   series: Parviflorae 
• Guarianthe bowringiana (25.00%)  subgenus Circumvola  section: Moradae