To confirm the registration of an Australian native hybrid & view its composition/progeny: (Database as at 1st January 2020 RHS registrations)
For non-Australian Dendrobium hybrids use the Dendrobium Hybrids checklist here
Sarco. Sundaani Jean= Jean May x Heidi registered: 26/01/2018 by Hockey P.J.
Species composition summary:
hartmannii 75.% fitzgeraldii 18.8% weinthalii 6.3%
Sarco. Sundaani Jean = Jean May x Heidi = [Jeanne x hartmannii] x [Fitzhart x hartmannii]
Fitzhart = hartmannii x fitzgeraldii
Jeanne = Weinhart x Fitzhart = [hartmannii x weinthalii] x Fitzhart