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. Rebecca
= Ginger x Snowhart ( has 13 hybrid progeny ) registered: 13/11/2006 by Roper N.Species composition summary:
hartmannii 75.% fitzgeraldii 18.8% olivaceus 6.3%
Detailed composition:
Sarco. Rebecca = Ginger x Snowhart = [Cream Cake x Heidi] x [Cherie Snow x hartmannii]
Heidi = Fitzhart x hartmannii = [hartmannii x fitzgeraldii] x hartmannii
Cherie Snow = Cherie x hartmannii = [Fitzhart x fitzgeraldii] x hartmannii
Cream Cake = Marion x hartmannii = [Fitzhart x olivaceus] x hartmannii
Fitzhart = hartmannii x fitzgeraldii