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. Rusty Imp
= Kellie x Roberta registered: 31/10/2013 by Roper N.Species composition summary:
hartmannii 51.6% fitzgeraldii 29.7% hirticalcar 12.5% olivaceus 6.3%
Detailed composition:
Sarco. Rusty Imp = Kellie x Roberta = [Cream Cake x Nicky] x [Cherie Snow x Snowhart]
Snowhart = Cherie Snow x hartmannii = [Cherie x hartmannii] x hartmannii
Nicky = fitzgeraldii x hirticalcar
Cream Cake = Marion x hartmannii = [Fitzhart x olivaceus] x hartmannii
Cherie Snow = Cherie x hartmannii = [Fitzhart x fitzgeraldii] x hartmannii
Cherie = Fitzhart x fitzgeraldii = [hartmannii x fitzgeraldii] x fitzgeraldii
Fitzhart = hartmannii x fitzgeraldii