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. Yalwal
= Sweetheart x Yvette registered: 12/11/2012 by Roper N.Species composition summary:
fitzgeraldii 50.% hartmannii 50.%
Detailed composition:
Sarco. Yalwal = Sweetheart x Yvette = [Fitzhart x Heidi] x [Cherie x Fitzhart]
Fitzhart = hartmannii x fitzgeraldii
Heidi = Fitzhart x hartmannii = [hartmannii x fitzgeraldii] x hartmannii
Cherie = Fitzhart x fitzgeraldii = [hartmannii x fitzgeraldii] x fitzgeraldii