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. Natalie= Charlotte x Riverdene registered: 30/11/2005 by Roper N.
Species composition summary:
hartmannii 43.8% hirticalcar 25.% fitzgeraldii 18.8% olivaceus 12.5%
Sarco. Natalie = Charlotte x Riverdene = [Marion x Fitzhart] x [hartmannii x hirticalcar]
Fitzhart = hartmannii x fitzgeraldii
Marion = Fitzhart x olivaceus = [hartmannii x fitzgeraldii] x olivaceus