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. Sundaanis Joy
= hartmannii x Joyful Cherie registered: 18/05/2014 by Hockey P.J.Species composition summary:
hartmannii 62.5% fitzgeraldii 34.4% falcatus 3.1%
Detailed composition:
Sarco. Sundaanis Joy = hartmannii x Joyful Cherie = hartmannii x [Cherie x Cherie's Joy]
Cherie's Joy = Cherie x Melody = [Fitzhart x fitzgeraldii] x [Melba x fitzgeraldii]
Cherie = Fitzhart x fitzgeraldii = [hartmannii x fitzgeraldii] x fitzgeraldii
Melba = hartmannii x falcatus
Fitzhart = hartmannii x fitzgeraldii