The orchid Guarianthe Barbara Kirch is a hybrid registered with the Royal Horticultural Society by Woodlawn in 1952.
Top three species ancestors and their influences are

• Guarianthe aurantiaca (50.00%)  subgenus Circumvola  section: Aurantiacae 
• Guarianthe bowringiana (50.00%)  subgenus Circumvola  section: Moradae