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. Sweet Josephine
= George Colthup x Wizz Fizz registered: 11/01/2020 by Western K.Species composition summary:
hartmannii 67.2% fitzgeraldii 20.3% falcatus 12.5%
Detailed composition:
Sarco. Sweet Josephine = George Colthup x Wizz Fizz = [Melba x hartmannii] x [Fitzhart x Zoe]
Zoe = Cherie Snow x Heidi = [Cherie x hartmannii] x [Fitzhart x hartmannii]
Fitzhart = hartmannii x fitzgeraldii
Melba = hartmannii x falcatus
Cherie = Fitzhart x fitzgeraldii = [hartmannii x fitzgeraldii] x fitzgeraldii