To confirm the registration of an Australian native hybrid & view its composition/progeny: (Database as at 1st April 2018 RHS registrations)
For non-Australian Dendrobium hybrids use the Dendrobium Hybrids checklist here
Sarco. Kulnura Songbird= Kulnura Ripple x Sweetheart ( has 2 hybrid progeny ) registered: 8/11/2013 by Barrita -Barrie S.
Species composition summary:
Sarco. Kulnura Songbird = Kulnura Ripple x Sweetheart = [Heidi x Canary] x [Fitzhart x Heidi]
Heidi = Fitzhart x hartmannii = [hartmannii x fitzgeraldii] x hartmannii
Canary = hartmannii x olivaceus
Fitzhart = hartmannii x fitzgeraldii