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. Rosie= Elise x Dove registered: 28/10/2005 by Roper N.
Species composition summary:
hartmannii 31.3% ceciliae 25.% fitzgeraldii 25.% hirticalcar 12.5% falcatus 6.3%
Sarco. Rosie = Elise x Dove = [ceciliae x Nicky] x [Melody x hartmannii]
Nicky = fitzgeraldii x hirticalcar
Melody = Melba x fitzgeraldii = [hartmannii x falcatus] x fitzgeraldii